大气压力降低，对空分设备的影响是（）。A、空压机的压缩比增大 B、空压机的排气量减小

《劳动法》调整集体合同区别于民法、经济法调整的民事合同和经济合同的重要特点之一就是劳动者一方必须以()的身份出面，集体合同才能成立

A.职工个人

B.自然人代表

C.工会或职工代表

D.法人代表

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.

16（）

A.printed

B.confirmed

C.forged

D.justified

可采用拉毛养生机或人工软拉槽制作（）。高速公路、一级公路宜采用（）进行硬刻槽，其刻槽宽度不宜小于（），所配备的硬刻槽能力应与滑模摊铺进度相匹配。

试验证明，褪黑素对生殖活动的影响是什么？