La4A4026某线圈有100匝。通过的电流为2A,则该线圈的磁势为()安匝。
A、50;
B、400;
C、200;
D、0.02。
参考答案:C
The manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly.
A.gave
B.gives
C.was giving
D.had given
---Tommy, do you know if Frank _____ to the theatre with us this Sunday if it _____?
---Sorry, I have no idea.
A.will go, is going to be fine
B.goes, is fine
C.will go, is fine
D.goes, will be fine