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问题 多项选择题

男性前 * * 癌最常见的临床表现有（）

A. * * 滴血

B.腹股沟淋巴结肿大

C.排尿困难

D.阴茎异常勃起

E.阴茎腹侧能触及肿物

答案

参考答案：C, E

单项选择题

可用于静脉注射用乳剂的乳化剂的是（ ）

A．吐温-80

B．司盘-80

C．月桂硫酸钠

D．卖泽

E．普流罗尼克F-68
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单项选择题

When fire pumps are used for other than firefighting service，each pipe connecting the other service (except for branch lines used for deck washing) must have a（）.

A.check valve installed in the line

B.shut off valve at a manifold near the pump

C.quick disconnect union within ten feet of the pump

D.regulator in the line set at 125 psi
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