和平共处五项原则就是（） A.互相尊重主权和领土完整 B.互不侵犯 C.平等互利 D

甲轮胎厂因生产需要，于2月25日分别向乙、丙两公司发出购买橡胶原料的要约，两公司均声明应于3月10日前答复。乙公司于3月5日以特快专递形式表示愿按甲厂的要约条件供货，但因邮差误投，3月13日方才送达甲处(正常情形应于2日内送达)。丙公司因内部工作人员操作疏忽，于3月12日以电子邮件方式表示愿按甲厂的要约条件供货。此时甲厂因生产急需，已另行购入了橡胶原料，并未对上述信件作任何答复。乙、丙两公司于3月25日自行组织货物并派人运送至甲处，遭甲拒收，于是发生纠纷。乙、丙分别诉至法院，要求甲接受货物并付货款。
问：甲是否有权拒收乙、丙两公司的货物

在无线蜂窝移动通信系统中，多址接入方法主要有以下3种：FDMA，TDMA与（ ）。

A．CSMA

B．SMTP

C．CDMA

D．FTP

侧风中着陆，为了修正偏流，采用可以既修正了偏流，又使飞机的升阻比不减小（）

A.侧滑法

B.改变航向法和侧滑法相结合

C.改变航向法

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. (254 words)

4（）

A.which

B.what

C.how

D.that

准确度是指用该方法测定的结果与真实性或参考值接近的程度，一般应采用什么表示（）

A.RSD

B.百分回收率

C.SD

D.CV

E.绝对误差