产后胎盘附着部位的子宫内膜全部修复约需
A.2周B.3周C.4周D.5周E.6周
参考答案:E
有一位建筑师,想要建一座房子,房子四面的窗子都朝向南方.你认为应建在哪里?( )
A.北极点
B.南极点
C.赤道上
D.本初子午线上
The roof fell ________ he had time to dash into the house to save his baby.
A.as
B.after
C.until
D.before