发动机功率大、压缩比大、转速高时应选用（）。A、热型火花塞 B、中型火花塞 C、冷型火花

疲劳测定中，通过测量劳动者的简单反应时间或复杂反应时间的变化，判定他是否出现疲劳的方法属于( )。

A．主观感觉调查表法
B．智能测验
C．分析脑电图
D．精神测验

用以表示药物在体内分布程度的药物代谢动力学参数是（）

A.吸收速率常数

B.生物利用度

C.表观分布容积

D.生物半衰期

E.清除率

关于小儿体表面积的估计下列哪项是不恰当的（）

A.小儿头颈部体表面积为：（21-年龄）％

B.中国九分法不适用于小儿

C.小儿体表面积的特点是头大下肢小

D.小儿双下肢体表面积为：（34+年龄）％

E.小儿躯干（含会阴）体表面积为27％

Automobile exhaust is a serious pollution problem in Riverside, and instituting tolls at Riverside’s bridges would reduce the total number of miles traveled by automobiles. Nevertheless, overall pollution levels would not decrease because there would be long lines at the toll booths, and automobiles expel more exhaust per minute while idling than in any other driving situation.
The argument above depends on which of the following assumptions

A．Any reduction in automobile exhaust resulting from a reduction in the miles traveled by cars would be matched or surpassed by the additional exhaust resulting from toll lines.

B．Cars in Riverside spend more time, on average, idling than they do in other driving situations.

C．Increasing automobile exhaust at the bridges will not significantly affect air pollution because few drivers use the bridges in Riverside frequently.

D．Reducing automobile exhaust is not the most effective way of reducing air pollution.

E．(E) The inconvenience of idling in the long toll lines at Riverside’s bridges wilt cause most drivers to change their driving routes, not the amount of driving that they do.

地震灾害瞬间发生，破坏力强，人员伤亡重，下列表述不正确的是（）。

A.导致大片居民住宅、建筑、道路、桥梁等倒塌和城镇基础设施毁坏

B.造成大量人员被埋压

C.灾民一时无法得到有效救助，导致伤亡人数不断增加

D.引发次生灾害，但一般不会引发火灾