与甘草相反的药物是（）。
A.半夏
B.贝母
C.瓜蒌
D.藜芦
E.海藻
参考答案：E
—Is the tie made ________ silk?
—Yes. It's made ________ Italy.
[ ]
A. from; in
B. of; in
C. from; of
D. of; from
请问变压器的差动保护能反映哪些故障？
