问题 单项选择题 A1/A2型题

肿瘤的基本特征不包括()。

A.细胞的异常生长

B.肿瘤细胞的恶性行为是通过细胞增殖传递给子代细胞的

C.保存了正常细胞的功能

D.肿瘤是涉及遗传物质(DNA.结构和功能改变的疾病

E.肿瘤细胞分化功能降低或丧失

答案

参考答案:C

多项选择题
单项选择题

Questions from 31 to 35 are based on the following passage:

  The exporter, as drawer of a draft (bill of exchange), hands the draft to his bank, the remitting bank, who in turn forwards it to the buyer through a collecting bank in the buyer’s country. A draft (also called a bill) is a written order to a bank or a customer to pay someone on demand or at a fixed time in the future a certain sum of money. If shipping documents accompany the draft, the collection is called “documentary collection.”

  Documentary collection falls into two major categories: one is documents against payment(D/P); the other, documents against acceptance (D/A).

  Documents against payment, as the term suggests, is that the collecting bank will only give the shipping documents representing the title to the goods on the condition that the buyer makes payment.

  Where the paying arrangement is D/A, the collecting bank will only give the buyer the shipping documents after buyer’s acceptance of the bill drawn on him, i.e. the buyer signs his name on the bill promising to pay the sum when it matures. In return he gets what he needs – the shipping documents.

  Under D/A, the seller gives up the title to the goods – shipping documents before he gets payment of the goods. Therefore, an exporter must think twice before he accepts such paying arrangement.

The meaning of D/A is().

A.documents against acceptance

B.documents against payment

C.delivery after payment   

D.cash against payment