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问题 选择题

在抢救大出血的危重病人时，常需静脉滴输0.9%氯化钠溶液（俗称“生理盐水”），是由于人体血液的“矿化度”（即无机盐的相对含量）为0.9%。另有研究表明，30亿年前地表原始海水的矿化度即为0.9%，对此，下列猜测或评论中，不足取的是 [ ]

A. 人类的祖先可能是从原始海洋中逐渐进化到陆地上来的

B. 人体血液和原始海水的矿化度均为0.9%纯属巧合

C. 人体血液和原始海水之间存在着某些尚未被认识的关系

D. 人体血液仍然带有原始海水的某些印痕

答案

答案：B

单项选择题

The "main storage" normally means that part of internal storage into which instructions and other data must be loaded for subsequent execution or processing. In large computing systems, the term "main storage" is (71) to "memory". "Buffer" mainly indicates a special-purpose storage or storage area allowing, through (72) storage, the data transfer between two functional units having different transfer characteristics. A buffer storage is used between non-synchronized devices or where one is (73) and the other is parallel or between those having different trans far rates. " (74) (memory)" is also a special-purpose buffer storage, smaller and faster than main storage, used to hold a copy of instructions and data obtained from main storage and likely to be needed next by the processor. "Register" is commonly composed of a part of internal storage having a specified storage (75) and usually intended for a specific purpose.

（73）是（）

A.sequential

B.serial

C.chain

D.successive
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多项选择题

薪酬调查的原则有（）。

A.调查方法的多样性

B.调查对象的可比性

C.调查职位的可比性

D.调查资料的真实性

E.调查资料要及时更新
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