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问题 单项选择题

嗜酸性粒细胞计数最常用于（）。

A.诊断真性红细胞增多症

B.诊断变态反应性疾病

C.诊断黏液性水肿

D.慢性粒细胞白血病与类白血病反应的鉴别诊断

E.以上都不是

答案

参考答案：B

选择题

We live day by day, but in the great things, the time of days and weeks ________ so small

that a day is unimportant.[ ]

A．is  

B．are

C．has been  

D．have been
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选择题

Which of the following sentences doesn’t  contain(包含) an object clause（宾语从句）?

A．Many people believe robots will do most of our work.

B．Scientists should be able to develop plants that grow on Mars.

C．People think that humans on Mars have to wear special boots to make themselves heavier.

D．We all know the next Olympic Games will be held in Beijing.
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