自耦变压器与普通变压器的区别在于自耦变压器的副绕组与原绕组之间不仅有()联系,而且有()联系。
参考答案:磁的、电的
x2+5x+6=( )( ),x2+5x-6=( )( ).
- We want someone to design the new art museum for us.
-__________ the young fellow have a try? [ ]
A. May
B. Shall
C. Will
D. Need