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问题 配伍题 B型题

人体与病原体处于相持状态，不出现临床症状，不排出病原体（）
感染病原体后不出现临床表现，但产生了特异性免疫（）

A.病原体被消灭或排出体外

B.病原体携带状态

C.隐性感染

D.潜在性感染

E.显性感染

答案

参考答案：D,C

判断题

城市中轴线最早的考古发现是秦汉时期.
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单项选择题

Observe that for the programmer, as for the chef, the urgency of the patron (顾客) may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette (煎鸡蛋) , promised in two minutes, may appear to be progressing nicely. Butwhen it has not set in two minutes, the customer has two choices--waits or eats it raw. Software customers have had (116) choices.
Now I do not think software (117) have less inherent courage and firmness thanchefs, nor than other engineering managers. But false (118) to match the patron’s desireddate is much more common in our discipline than elsewhere in engineering. It is very (119) to make a vigorous, plausible, and job risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers.
Clearly two solutions are needed. We need to develop and publicize productivity figures, bug-incidence figures, estimating rules, and so on. The whole profession can only profit from (120) such data. Until estimating is on a sounder basis, individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.

A．sharing

B．excluding

C．omitting

D．ignoring
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