隔离开关可拉开()的空载线路。
A、5.5A;
B、电容电流不超过5A;
C、5.4A;
D、2A。
参考答案:B
In Disneyland, every year, some 800,000 plants are replaced because Disney refused to ________ signs asking his “guests”
not to step on them.
A.takedown
B.callfor
C.putup
D.setup
常压蒸馏产品发生馏分后部重现象时,应()本侧线油的馏出量,使回到下层去的内回流加大,温度降低。
A.增加
B.降低
C.保持不变