自耦变压器原付方传递功率中,既有电磁感应又有直接传导电能。()
参考答案:对
There are some dangerous fishes in this river, and I've warned Jack _____
here. [ ]
A. not to swim
B. to not swim
C. swim not to
D. to swim not
实际操作中选用吸收塔时,只要能保证操作稳定就行。