性大寒,专泻肺中水饮及痰火而平喘咳的药物为
A.葶苈子
B.杏仁
C.桑白皮
D.前胡
E.竹沥
参考答案:A
Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.
A.exposed
B.threatened
C.constructed
D.conserved
按发热条件选择导线截面,室外的环境温度一般取()。
A.按当地最热月地下0.8~1m的土壤平均温度
B.当地最热月平均气温
C.当地最热平均最高气温加5℃
D.当地最热月平均最高气温