喘而汗出伴咳痰黄稠者宜用（）
A.葛根汤
B.葛根芩连汤
C.小青龙汤
D.麻杏石甘汤
E.麻黄汤
参考答案：D
This idea isn't _____. Let's think another idea.[ ]
A. interesting enough
B. enough interesting
C. bad enough
D. awful enough
理想电流源是指内阻为（），输出恒定电流I的电源。
A.零
B.很小
C.很大
D.无限大
