酸枣仁汤中含有的药物是()
A.酸枣仁、龙骨
B.龙骨、知母
C.党参、茯苓
D.酸枣仁、知母
E.川芎、白芍
参考答案:D
When Peter speaks in public, he always has trouble _ the right things to say.
A.thinking of
B.to think of
C.thought of
D.think of
已知则f(x)在(0,π)内的正弦级数的和函数在x=处的值为()。
A.A
B.B
C.C
D.D