她是谁?可以说:
A:Who is he?
B:Who is she?
向阳小学有930人去祭扫烈士陵墓,每辆车坐30人,需要____辆这样的汽车。
My brother has been under a lot of ______ since he went to high school.
接在家庭电路中的电能表可直接测量的是____.