治疗高血压首选的腧穴是()
A.合谷
B.商阳
C.曲池
D.阳溪
E.手三里
参考答案:C
Hangzhou is famous _____ silk in China. [ ]
A. from producing
B. from produce
C. for producing
D. for produce
维系蛋白质分子中螺旋的化学键是
A.盐键
B.疏水键
C.氢键
D.肽键
E.二硫键