异物常停留于口咽的部位是()
A.舌根
B.舌会厌正中襞
C.梨状窝
D.舌会厌外侧襞
E.舌扁桃体
参考答案:E
市政消火栓沿可通行消防车的街区道路布置,间距不得大于()。
A.120m
B.100m
C.80m
D.60m
16.Nobody knows who is the first one to add fertilizer ___ the soil to make plants grow better.
A.to
B.in
C.into
D.on