萧县青龙集镇的选举委员会的组成人员由萧县人民代表大会常务委员会任命。()
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______工艺的镀层厚度可以精确控制，且镀后不需进行机械加工。
A. 电镀
B. 电刷镀
C. 喷涂
D. 喷焊
晶体管调压器是在发电机的激磁电路中串入一个()。
A. 有触点开关或可变电阻
B. 无触点开关或可变电阻
C. 可变电阻或固定电阻
D. 固定电阻或滑动电阻
A bonding cable should be connected for cargo operations aboard a tank vessel as soon as the ______．
A. Cargo has been loaded or discharged
B. Cargo hose is connected
Cargo pumps are started
D. Vessel is ready to handle cargo
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