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下图是显微镜视野中人血涂片示意图，请回答相关问题

（1）当人体某处受伤出血时，具有止血和凝血作用的是[    ]血小板，若伤口受病菌感染发炎，数量明显增高的是[②]  _____

(2)红细胞的形状是____________成熟的红细胞没有        ，细胞中含有血红蛋白，具有运输        的功能。小燕经常面色苍白，容易疲劳，经血液化验，红细胞的数目为3×1012个/L（女子正常值为4.2×1012个/L）。据此判断可能患有        症。平时应多吃一些含蛋白质和      丰富的食物。

答案

（1）[3] [②]白细胞  (2) 两面凹的圆饼状 细胞核  氧 贫血  铁

该题考的是血细胞的特点和功能，红细胞是数量最多的血细胞，成熟的红细胞没有细胞核。红细胞里含有一种红色含铁的蛋白质，叫做血红蛋白，血红蛋白特性：在氧浓度高的地方与氧容易结合，在氧浓度低的地方与氧容易分离，因此红细胞具有运输氧的功能。白细胞是最大的血细胞，有细胞核，对人体具有防御和保护作用。血小板是最小的血细胞，没有细胞核，具有止血和凝血功能。当红细胞的数量或者血红蛋白的数量低于正常值时，可能患有贫血病，白细胞数量多于正常值时，可能患有急性炎症。

问答题 简答题

道路客运服务质量标准体系包括哪些？他们具体分别包括哪几项内容？
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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. (254 words)

2（）

A.for

B.through

C.as

D.in
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