Isn’t it amazing how the human body heals after an injury?
A.himself
B.itself
C.it
D.him
答案:B
甲数是乙数的7倍,乙数是28,甲数是[ ]
A.4
B.35
C.196
容量瓶干燥的方法是()。
A.阴干或用电吹风吹干
B.烘箱中烘干
C.酒精灯烤干
D.用滤纸擦干