光周期补光对光照强度要求较低,称为()。
参考答案:低强度补光
---I am afraid that I have to trouble you with this question.
---___________.
A.No,you cannot
B.Go ahead
C.Not at all
D.I don’t mind
I’d rather you did some social research when you are free, but you _____.
A.didn’t
B.weren’t
C.wouldn’t
D.don’t