Though the herb is so strange, you must ______ it.[ ]
A. have
B. eat
C. take
D. drink
答案:C
大肠杆菌DNA聚合酶的催化反应需要的金属离子是:
A.Mg2+ B.Zn2+C.Fe2+ D.Ca2+
手足心热甚于手足背,口干咽燥,神疲,脉虚,为()
A.足太阴脾的病变
B.足少阴肾的病变
C.手厥阴心包的病变
D.足厥阴肝的病变
E.足阳明胃的病变