妊娠病的治疗原则大多是
A．以治病为主
B．以安胎为主
C．先治病后安胎
D．治病与安胎并举
E．下胎以益母
参考答案：D
—Though it __________ in the desert most of the year, people still live there.
—That’s the case. They say east or west home is the best.
A．hasn’t rained
B．didn’t rain
C．doesn’t rain
D．hadn’t rained
叶座是植物（）部在茎上的化石的痕迹
