When the normal compression ratio of a diesel engine is not very high, misfiring at light
A. overloading the engine
B. low exhaust valve lift
C. excessive cylinder cooling
D. insufficient mechanical clearance
党的基层代表大会的选举,如果发生违反党章的情况该怎么办?
在显微镜下观察真菌时,常用于处理标本的物质是
A. 氯化银
B. 明矾
C. 甘油
D. 氢氧化钾
E. 抗生素
在顺风滑行时,建议功率杆放置在反浆位置的时间不超过:
A. 5s
B. 10s
C. 15s
D. 20s????