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问题 问答题 简答题

矿用电机车的制动力由谁来决定？

答案

参考答案：

矿用电机车的制动力由制动装置施加的力和机车与轨道之间的粘着力（即摩擦力）共同决定。

一般制动装置施加的力可以很大，而粘着力却受到不打滑条件的限制，故主要由机车与轨道之间的粘着力（即摩擦力）决定。

单项选择题 B1型题

犬妊娠后，在X线片上最早能显示的时间范围约为（）

A.24d

B.30d

C.35d

D.40d

E.45d
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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.

18（）

A.risk

B.guarantee

C.fault

D.benefit
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