采用关键节点法寻找关键路线中,某节点最早时间均()该节点最迟时间的节点成为关键节点,两关键节点构成关键工作。
A. 等于
B. 大于
C. 小于
D. 大于或等于
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控制图是利用生产过程处于稳定状态下的产品质量特性值分布服从()这一统计规律识别生产过程的异常因素,控制生产过程由于系统性原因造成的质量波动,保证工作处于控制状态。
A. 非正态分布
B. 正态分布
C. L型分布
D. U型分布
People went to Hollywood to make films because ______．
A. it was a beautiful place
B. they could find many film stars
C. there was a lot of sunlight there
D. it was a famous place
A．caughtB．searchedC．soughtD．spotted
A. caught
B. searched
C. sought
D. spotted
What is the text mainly about？
A. The research into war history．
B. The finding of a forgotten hero．
C. The pilots of the two world wars．
D. The importance of military studies．
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