不具有换气功能的解剖结构是()
A.呼吸性细支气管
B.小叶细支气管
C.肺泡管
D.肺泡囊
E.肺泡
参考答案:B
The volleyball match will be put off if it _____.
A.will rain
B.rains
C.rained
D.is raining
It was in the stone house was built as a school by local villagers the boy finished his primary
school. [ ]
A. which; that
B. that; where
C. which; where
D. that; which