垂直温差不应大于()
A.2~3℃
B.2~5℃
C.3℃
D.5℃
E.6℃
参考答案:C
The boy Henry met in the park yesterday lives next to your house, _________ ? [ ]
A. didn't he
B. didn't she
C. doesn't he
D. doesn't she
主动脉腹部成对的脏支主要包括:()动脉、()动脉和()动脉。