维修天窗原则上应安排在（），并满足作业轨温条件。
A.昼间
B.夜间
C.春秋季
D.冬夏季
参考答案：A
--- Oh, my God! We just missed the last bus back home.
--- I’m sure we it, but you were not in any hurry.
A．could catch
B．had caught
C．would catch
D．could have caught
输入大中家畜由农业部负责审批( )
