中国家庭社会学比较规范化的学术研究起源于“五四运动”以后。
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测控装置通信中断属于危急缺陷()
A. 正确
B. 错误
keepupspeedmeans()
A. keep as high speed as possible
B. reduce speed
C. adjust speed
D. maintain speed
Theterm“wilco”means()
A. I agree with you
B. I will comply with your instruction
C. that is correct.
D. roger
系统解列点的设置原则是解列后应满足各地区各自同步运行和供需基本平衡的要求()
A. 正确
B. 错误