皮皮学，免费搜题
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【单选题】
射精管开口于 ( )A.
尿道前列腺部
B.
尿道膜部
C.
尿道起始部
D.
尿道海绵体部
E.
尿道球部
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举一反三
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A.
Interestingly,
B.
Definitely,
C.
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A.
if never
B.
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C.
if any
D.
if ever
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A.
when
B.
if
C.
because
D.
until
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A.
take
B.
takes
C.
have taken
D.
had taken
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A.
灯 L 1 额定功率较大
B.
灯 L 2 两端电压较大
C.
灯 L 1 的电阻较大
D.
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