The collisional cross section for acetylene （C2H2) is larger than N2. Based on this information, choose the correct statement in the following.

He is known______the first person to fly across the Atlantic.

A．for

B．as

C．in

D．to

SECTION B ENGLISH TO CHINESE

Directions: Translate the following text into Chinese.

When Disneyland opened in 1955, it proved an instant success. Sixteen years later it spawned a bigger sister the 27,000-acre Walt Disney World in Orlando, Florida. Tokyo Disneyland followed in 1983.

Then it was Europe's turn. After weighing some 200 places across the continent, the company settled on a fantastic site near Paris which the French government was offering. For a bargain price, Disney bought nearly 5,000 acres, 20 miles east of the capital. Final contracts were signed in March 1987, and soon some 10,000 construction workers were digging and building and wiring and painting.

When I visited the site last August, it looked more like a battlefield than an amusement park. How, I wondered, would 150 million cubic feet of churned up earth become, within nine months, a resort containing Sleeping Beauty's castle and 29 other attractions, 360,000 trees and shrubs, 20 bridges, six hotels, five swimming pools, 50 restaurants and snack bars, 100 shops, 1,051 robots and a Mississippi River steamboat?

"They will need a magic wand to finish it on time," said a cynical French friend. But the Disney people have been in the magic wand business for well over half a century.

Gail Pasterczyk, the principal of Indian Pines Elementary in Palm Beach County, Fla. , has added two or three new teaching positions each of the past three years. She's adding two more teachers next year as well as replacing those she'll lose to maternity leave, transfers, and retirement. She doesn't know where the new teachers will come from, if the new hires will be any good, and where she'll find room for all of them. Indian Pines already has 27 portable classrooms and is waiting to break ground on a two-story, 25-classroom addition. "When you start reducing class size, you've got to find more teachers, and you run out of space," she says. "That's the reality. " Her school district, one of the nation's largest, has sent recruiters across the country, and even to Mexico and the Philippines, to fill an expected 1,700 teaching vacancies before the fall. "We are in a race to keep the schools staffed," says Robert Pinkos, a Palm Beach County recruiter who will travel to Baltimore and Madrid next month to troll for teachers.

Two and a half years after Florida voters adopted a constitutional amendment to reduce class sizes, Palm Beach County—and every other school district in the state—are tripping over a major stumbling block: There just aren't enough good teachers to go around. With classes in kindergarten through third grade capped at 18 students, fourth through eighth held at 22, and high school limited to 25, the state will need to hire an estimated 29,604 new teachers by 2009—a prospect that has many people worried. "I have every reason to expect that the quality of teachers will suffer," says John Winn, the state's education commissioner.

Nationwide, 33 states now have laws that restrict class size. And the politically popular educational reform. has proved successful in some areas, particularly among the lowest-performing students. In Burke County, N. C. , for example, discipline problems are down and test scores are up, even for the most disadvantaged students in the district. "On paper these kids should not be succeeding, but they are," says Susan Wilson, a former teacher and now director of elementary education in the rural county.

But this success comes at a price. It means hiring more teachers, building more classrooms, and retraining teachers to work with smaller groups of students. And it means, critics maintain, that states pit their own districts against one another in the race to hire. "When you mandate class-size reduction statewide, the suburban schools tend to draw the best new teachers, and the more urban schools, which already have trouble attracting teachers, can't attract the best candidates," says Steven Rivkin, an economics professor at Amherst College who has studied the effects of class-size reduction on teacher quality. Any gains from cutting class size could be undermined by hiring lower quality teachers.

Resources. Proponents contend that the reform. would be relatively pain-less if existing resources were managed well. "Hiring more teachers is only part of the solution," says Charles Achilles, one of the first researchers to study the effects of reducing class sizes. "The best programs for class-size reduction not only hire more teachers but reassign existing specialty teachers to get them back in the classroom. "

Florida policymakers are trying to find their own way out of the class-size quandary. This month, the Legislature is considering a proposal to roll back some of the size limits in exchange for an increase in teacher pay. Gov. Jeb Bush, who opposed the constitutional amendment in 2002, argues that the compromise will attract more top-quality teachers to the state while reining in costs. Voters could see the proposed change on the ballot as early as September. In the meantime, recruiter Pinkos continues his search for new teachers, sometimes working 10-hour days. His pitch? "Palm Beach is very beautiful, but the

A．the education authorities will trip to Mexico and the Philippines for new teachers

B．there will be problems of placing redundant teachers

C．quality of teachers will probably go down

D．students are likely get more sophisticated education in smaller class

The priest made the ______ of the cross when he entered the church.[2005]

A．mark

B．signal

C．sign

D．gesture

听力原文：(A) The woman has left her seat.

(B)The men are leaning across the table.

(C)There is a pair of sunglasses on the table.

(D)The woman is putting some flowers in a vase.

A．

B．

C．

D．

The priest made the____of the cross when he entered the church.

A．mark

B．signal

C．sign

D．gesture

please show the CMOS inverter schmatic,layout and its cross sectionwith P-well process.Plot its transfer curve (Vout-Vin) And also explain the operation region of PMOS and NMOS for each segment of the transfer curve? （威盛笔试题c ircuit design-beijing-03.11.09）