http://nos.netease.com/edu-image/C526AE2788404166BE598E62DDBE3B90-1442109964752？imageView&thumbnail=520x520&quality=100

What's the man's telephone number?

A．9888-8888.

B．8106-526.

C．9810-6526.

What's the man's telephone number?

A．9888—8888.

B．8106—526.

C．9810—6526.

(2×100)+(5×1)+(6×1,000)+(9×10)=

A．2,569

B．2,956

C．6,259

D．6,295

E．9,526

张仲岩著《修事指南》为清代炮制专书，收录药物有

A.232种

B.300种

C.439种

D.1892种

E.526种

某一六标准差团队量测改善前后若干钢条的抗剪强度,数据如后:

改善后:525,531,518,533,546,524,521,533,545,540

改善前:521,525,533,525,517,514,526,519

假设数据服从正态分布,经由Minitab分析,请问下列叙述何者错误:

A.因改善前后皆为正态分布,因此变异数检定使用F检定

B.因改善前后皆为正态分布,因此变异数检定使用Levene检定

C.变异数检定结果,变异数没有显着差异

D.2Samplet检定结论,改善后抗剪强度确实比改善前好

Largely for "spiritual reasons", Nancy Manos started home-schooling her children five years ago and has studiously avoided public schools ever since. Yet last week, she was enthusiastically enrolling her 8-year-old daughter, Olivia, in sign language and modern dance classes at Eagleridge Enrichment—a program run by the Mesa, Ariz. , public schools and taught by district teachers. Manos still wants to handle the basics, but likes that Eagleridge offers the extras, "things I couldn't teach. " One doubt, though, lingers in her mind. why would the public school system want to offer home-school families anything?

A big part of the answer is economics. The number of home-schooled kids nationwide has risen to as many as 1.9 million from an estimated 345,000 in 1994, and school districts that get state and local dollars per child are beginning to suffer. In Maricopa County, which includes Mesa, the number of home-schooled kids has more than doubled during that period to 7,526, at about $ 4,500 a child, that's nearly $ 34 million a year in lost revenue.

Not everyone's happy with these innovations. Some states have taken the opposite tack. Like about half the states, West Virginia refuses to allow home-schooled kids to play public-school sports. And in Arizona, some complain that their tax dollars are being used to create programs for families who, essentially, eschew participation in public life. "That makes my teeth grit," says Daphne Atkeson, whose 10-year-old son attends public school in Paradise Valley. Even some committed home-schoolers question the new programs, given their central irony., they turn home-schoolers into public-school students, says Bob Parsons, president of the Alaska Private and Home Educators Association. "We've lost about one third of our members to those programs. They're so enticing. "

Mesa started Eagleridge four years ago, when it saw how much money it was losing from home schoolers—and how unprepared some students were when they re-entered the schools. Since it began, the program's enrollment has nearly doubled to 397, and last year the district moved Eagleridge to a strip mall (between a pizza joint and a laser-tag arcade). Parents typically drop off their kids once a week; because most of the children qualify as quarter-time students, the district collects $ 911 per child. "It's like getting a taste of what real school is like," says 10-year-old Chad Lucas, who's learning computer animation and creative writing.

Other school districts are also experimenting with novel ways to court home schoolers. The town of Galena, Alaska, (pop. 600) has just 178 students. But in 1997, its school administrators figured they could reach beyond their borders. Under the program, the district gives home-schooling families free computers and Internet service for correspondence classes. In return, the district gets $ 3,100 per student enrolled in the program—$ 9.6 million a year, which it has used partly for a new vocational school. Such alternatives just might appeal to other districts. Ernest Felty, head of Hardin County schools in southern Illinois, has 10 home-schooled pupils. That may not sound like much— except that he has a staff of 68, and at $ 4,500 a child, "that's probably a teacher's salary," Fehy says. With the right robotics or art class, though, he could take the home out of home schooling.

In the opening paragraph, the author introduces his topic by______.

A．posing a contrast

B．justifying an assumption

C．explaining a phenomenon

D．making a comparison

For the first time in decades, researchers are reporting a significant drop worldwide in the number of women dying each year from pregnancy and childbirth, to about 342,900 in 2008 from 526,300 in 1980.

The findings, published in the medical journal The Lancet, challenge the prevailing view of maternal mortality as an intractable problem that has defied every effort to solve it. "The overall message, for the first time in a generation, is one of persistent and welcome progress," the journal's editor, Dr. Richard Horton, wrote in a comment accompanying the article, published online on Monday. The study cited a number of reasons for the improvement: lower pregnancy rates in some countries; higher income, which improves nutrition and access to health care; more education for women; and the increasing availability of "skilled attendants"—people with some medical training—to help women give birth. Improvements in large countries like India and China helped to drive down the overall death rates.

But some advocates for women's health tried to pressure The Lancet into delaying publication of the new findings, fearing that good news would detract from the urgency of their cause, Dr. Horton said in a telephone interview. "I think this is one of those instances when science and advocacy can conflict," he said. Dr. Horton said the advocates, whom he declined to name, wanted the new information held and released only after certain meetings about maternal and child health had already taken place. He said the meetings included one at the United Nations this week, and another to be held in Washington in June, where advocates hope to win support for more foreign aid for maternal health from Secretary of State Hillary Rodham Clinton. Other meetings of concern to the advocates are the Pacific Health Summit in June, and the United Nations General Assembly meeting in December.

"People who have spent many years committed to the issue of maternal health were understandably worried that these figures could divert attention from an issue that they care passionately about," Dr. Horton said. "But my feeling is that they are misguided in their view that this would be damaging. My view is that actually these numbers help their cause, not hinder it. " He said the new study was based on more and better data, and more sophisticated statistical methods than were used in a previous analysis by a different research team that estimated more deaths, 535,900 in 2005. The authors of the earlier analysis, published in The Lancet, in 2007, included researchers from Unicef, Harvard, the World Bank, the World Health Organization and the Johns Hopkins School of Public Health. The World Health Organization still reports about half a million maternal deaths a year, but is expected to issue new statistics of its own this year.

The new report comes from the University of Washington and the University of Queensland in Brisbane, Australia, and was paid for by the Bill and Melinda Gates Foundation. A spokesman for Unicef said it had no comment on the new findings, and there was no response to messages that were left late Tuesday for W. H. O. officials. Dr. Christopher J. L. Murray, the director of the institute for health metrics and evaluation at the University of Washington, in Seattle, and an author of the study, said, "There has been a perception of no progress. " But, he said, "some of the policies and programs pursued may be having an effect. " "It really is an important positive finding for global health," he said. Dr. Murray said no one had approached him directly about delaying the release of his findings; he heard about those efforts from The Lancet, and described them as "disappointing". He said, "We believe in the process of peer-reviewed science, and it's the proper way to pursue these sorts of studies. "

The most suitable substitute for "defied" in Paragraph 2 is______.

A．resisted

B．eluded

C．challenged

D．denied

下图双角钢与节点板的连接，采用两侧而角焊缝，构件材料为Q235钢，焊条为E43型。焊脚尺寸h_f=6mm，肢尖焊缝长度110mm，肢背焊缝长度180mm，此连接承受的静力荷载设计值不应大于(  )。

 

  A．526kN  B．828kN  C．150kN  D．301kN

下图双角钢与节点板的连接，采用两侧面角焊缝，构件材料为Q235钢，焊条为E43型。焊脚尺寸＝6mm，肢尖焊缝长度110mm，肢背焊缝长度180mm，此连接承受的静力荷载设计值不应大于( )。

A、526kN

B、828kN

C、150kN

D、301kN