题目内容

The viscosity regulator controls the _____ of the fuel oil in order to provide the oil at

A. temperature
B. pumping rate
C. pressure
D. heat

查看答案
更多问题

光泽与白肋烟内在质量有密切关系,表现为()。

A. 中下部以尚鲜明者质量好
B. 尚鲜明者香气浓、劲头大、杂气微有
C. 稍暗者香气浓、劲头大,杂气微有,吸味纯净
D. 光泽鲜明者,香气浓、劲头大,杂气微有,吸味纯净

核电厂的外围地带又称规划限制区,规划限制区边界以反应堆为中心半径不得小于()km。

A. 1.5
B. 3
C. 5
D. 10

在R、L、C串联电路中,当XL=XC时,比较电阻上UR和电路总电压U的大小为()

A. UR<u
B. ur=u
C. ur>U
D. UR=0,U≠0

If you wished to transmit a message by voice concerning the safety of navigation,you would

A. Mayday
B. Pan-pan
C. Securite
D. Safety

答案查题题库