伴脑血管痉挛的高血压患者可选用()
A.维拉帕米
B.尼莫地平
C.硝普钠
D.可乐定
E.氯沙坦
参考答案:B
The _______ contract is a contract between a party who agrees to accept the risk and a party seeking protection from the risk
A.payment B.productionC.shipment D.insurance
我国自然资源最基本的特征是()
A.资源总量和人均占有量都很大
B.资源总量和人均占有量都很小
C.资源总量丰富,但人均占有量少
D.我国地大物博,资源种类多样