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问题 单项选择题

腹股沟管的外环是( )

A．腹膜的卵圆形裂隙
B．腹横筋膜的卵圆形裂隙
C．腹外斜肌腱膜的三角形裂隙
D．腹横肌的卵圆形裂隙
E．腹股沟韧带下方的漏斗形间隙

答案

参考答案：C

听力题

单词拼写（共5小题; 每小题1分, 满分5分）

小题1:Don’t drink too many soft drinks in your d__________ life. They are harmful to your health.

小题2:Please don’t make any n___________. The students are having exams now.

小题3:After school, a lot of students stand in line and w___________ for the school buses at the school gate.

小题4:You cannot l___________ your son at home by himself. He is too young.

小题5:Even t__________ he didn’t sleep at all last night, he kept on working.
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单项选择题

螺杆泵的流量随压力的升高而（）。

A、增大

B、减小

C、基本不变
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