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问题 单项选择题

影响合理砂率的主要因素是( )。

A．骨料的品种与粗细、混凝土拌和物的流动性或水灰比
B．骨料的品种与粗细、混凝土的强度
C．混凝土拌和物的流动性或水灰比、混凝土的强度
D．骨料的品种与粗细、水泥用量

答案

参考答案：A

单项选择题

关于间质性肺炎的X线表现，描述错误的是（）

A.范围大、散在

B.多与肺叶肺段无关

C.为线状、网状、小斑点状阴影

D.看不到含气支气管征

E.从病理学观点看，间质和实质的病变不能同时发病
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单项选择题

In every cultivated language there are two great classes of words which, taken together, comprises the whole vocabulary. First, there are those words (1) which we become acquainted in daily conversation, which we (2) , that is to say, from the (3) of our own family and from our familiar associates, and (4) we should know and use (5) we could not read or write. They (6) the common things of life, and are the stock in trade of all who (7) the language. Such words may be called "popular", since they belong to the people (8) and are not the exclusive (9) of a limited class.

On the other hand, our language (10) a multitude of words which are comparatively (11) used in ordinary conversation. Their meanings are known to every educated person, but there is little (12) to use them at home or in the market-place. Our (13) acquaintance with them comes not from our mother’s (14) or from the talk of our school-mates, (15) from books that we read, lectures that we (16) , or the more (17) conversation of highly educated speakers who are discussing some particular (18) in a style appropriately elevated above the habitual (19) of everyday life. Such words are called "learned", and the (20) between them and the "popular" words is of great importance to a right understanding of linguistic process.

10（）

A.consists

B.comprises

C.constitutes

D.composes
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