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问题 解答题

修一段公路，第一天修了全长的30%，第二天修了全长的50%，第二天比第一天多修200米，这段公路有多长？

答案

200÷（50%-30%），

=200÷20%，

=1000（米）；

答：这段公路有1000米长．

单项选择题

When anyone opens a current account at a bank, he is lending the bank money. He may (1) the repayment of the money at any time, either (2) cash or by drawing a check in favor of another person. (3) , the banker customer relationship is that of debtor and creditor who is (4) depending on whether the customer’s account is (5) credit or is overdrawn. But, in (6) to that basically simple concept," the bank and its customer (7) a large number of obligations to one another. Many of these obligations can give (8) to problems and complications but a bank customer, unlike, say, a buyer of goods, cannot complain that the law is (9) against him.

The bank must (10) its customer’s instructions, and not those of anyone else. (11) , for example, a customer opens an account, he instructs the bank to debit his account only in (12) of checks drawn by himself. He gives the bank (13) of his signature, and there is a very firm rule that the bank has no right or (14) to pay out a customer’s money (15) a check on which its customer’s signature has been (16) . It makes no difference that the forgery may have been a very (17) one, the bank must recognize its customer’s signature. For this reason there is no (18) to the customer in the practice, (19) by banks, of printing the customer’s name on his checks. If this (20) forgery, it is the bank that will lose, not the customer.

12（）

A.respect

B.charge

C.line

D.place
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填空题

在SQL语句中，可以利用 【28】 或 【29】 否定运算符来查找相反要求的记录。
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