不孕症肾气虚首选何方治疗（）。
A.毓麟珠
B.温胞饮
C.养精种玉汤
D.开郁种玉汤
E.苍附导痰丸
参考答案：A
Never before in China __________ so carefully concerned about the food safety.
A．people have been
B．have people been
C．are people
D．people are
泥沙颗粒级配资料应审查悬移质断颗的推求方法，（）关系曲线定线精度。
A.降雨—径流
B.水位—流量
C.单沙—断沙
D.单颗—断颗
