白芥子的功效是（） A.温肺化痰，利气散结 B.燥湿化痰，祛风解痉 C.祛顽痰，通窍

驾驶台两侧应各配备一只不带救生索的救生圈。

One of the club activties _____ by Mr Smith. [ ]

A. is holding

B. are held

C. is held

D. holds

Assume the economy is undergoing a recession. In its efforts to stimulate the economy by trying to influence short-term interest rates the Fed is most likely to take which two actions（）

A. Sell Treasury securities and increase bank reserve requirements.

B. Buy Treasury securities and decrease bank reserve requirements.

C. Buy Treasury securities and increase bank reserve requirements.

鸟氨酸循环合成尿素，一个氮原子来自NH3，另一个来自（）

A.谷氨酰胺

B.谷氨酸

C.天冬氨酸

D.天冬酰胺

E.氨基甲酰磷酸

关于女性生殖系统炎症的叙述不正确的是

A．妊娠期间不易发生滴虫性 * * 炎

B．滴虫性 * * 炎夫妻间不会相互传染

C．滴虫性 * * 炎用甲硝唑只需1次性治疗

D．绝经后雌激素水平降低，易引起念珠菌性 * * 炎

E．口腔、 * * 黏膜、肠道存在念珠菌可相互传染