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问题 单项选择题

以下对工程初步设计概算表述错误的是（）。

A、工程初步设计概算是编制基本建设年度投资计划的依据

B、工程初步设计概算是编制施工图预算的依据

C、工程初步设计概算是编制投标报价的依据

D、工程初步设计概算是编制工程结算和竣工决算的依据

答案

参考答案：C

单项选择题

实验动物新生期切除胸腺后，淋巴结内（）。

A．深皮质区缺乏T细胞

B．生发中心生成受影响

C．胸腺依赖区T细胞数目和生发中心均不受影响

D．深皮质区T细胞缺乏，同时生发中心形成也受影响

E．浅皮质区无明显影响
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单项选择题

The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is (1) to say it anyway. He is that (2) bird, a scientist who works independently (3) any institution. He helped popularize the idea that some diseases not (4) thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.

(5) he, however, might tremble at the (6) of what he is about to do. Together with another two scientists, he is publishing a paper which not only (7) that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in (8) are a particular people originated from central Europe. The process is natural selection.

This group generally do well in IQ test, (9) 12-15 points above the (10) value of 100, and have contributed (11) to the intellectual and cultural life of the West, as the (12) of their elites, including several world-renowned scientists, (13) . They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, (14) , have previously been thought unrelated. The former has been (15) to social effects, such as a p tradition of (16) education. The latter was seen as a (an) (17) of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately (18) . His argument is that the unusual history of these people has (19) them to unique evolutionary pressures that have resulted in this (20) state of affairs.

13（）

A.affirm

B.witness

C.observe

D.approve
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