In this section, you are asked to write an essay based on the following diagram. Describe

已知：某日巴黎外汇市场欧元对美元的报价为

即期汇率1.8120/50

3个月70/20

6个月120/50

客户根据需要，要求：

(1)买入美元，择期从即期到6个月；

(2)买入美元，择期从3个月到6个月；

(3)卖出美元，择期从即期到3个月；

(4)卖出美元，择期从3个月到6个月。

ild born in 2007 until his or her 18th birthday, the U.S. government reported on Monday.

Child care and education costs will represent a larger share of costs for raising the '07 baby through adulthood than they have in the past, the Agriculture Department said in an annual study on child-rearing costs.

"The cost of providing food decreased from 24 percent to 17 percent of total child-rearing costs, while child care and education expenses increased from 2 percent to12 percent," the department said.

Housing will be the single largest cost for U.S. families—making up 33 to 27 percent of total expenses across income groups, USDA said.

Factoring in inflation, the grand total for middle-income families comes to $269,040, USDA said. Total costs also include transportation, health care, and other necessities.

How I Overcome My Difficulty in Learning English

(1)你在英语学习中有哪些困难?

(2)你是如何克服这些困难的?

(3)这些方法给你带来的收获。

用噬菌体P1进行普遍性转导，供体菌的标记是pur+ nad- pdx+，受体菌的标记是put- nad+ pdx-。转导后选择具有pur+的转导子，然后在1000个pur+转导子中，检定其他供体菌的标记是否同时转导过来。具体结果如下：

请问：1．put和nad的共转导频率是多少?

2．pur和pdx的共转导频率是多少?

3．nad和pdx在pur的同一边，还是在它的两侧?

4．你能作出这三个标记基因的遗传连锁图吗?请在此基础上解释上述的实验结果。

Advantages and Disadvantages Of Home Computers

(1)家用电脑的普及。

(2)家用电脑的好处。

(3)家用电脑带来的问题.

结果是否为纳什均衡?