自中药乙醇提取浓缩液中分离总皂苷可选用的方法是（）
A. (C)H)O沉淀法
B. 胆甾醇沉淀法
C. 铅盐沉淀法
D. 吉拉尔试剂提取法
E. 碱水提取法
A.He isnt satisfied with the womans answer.B.He is angry.C.He is sad.
A. He isnt satisfied with the womans answer.
B. He is angry.
C. He is sad.
D. He is happy.
A.prospectB.possibilityC.probabilityD.future
A. prospect
B. possibility
C. probability
D. future
The DOE report found the extended DST________ ．
A. could only save a small amount of energy
B. was helpful for saving electricily because the overall consumption was huge
C. could reduce annual energy consumption of the whole country by 50%
D. hardly did any good to energy—saving
微信支付 
支付宝支付