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问题 单项选择题

继发性腹膜炎最常见的病原菌是（）

A.大肠杆菌

B.粪链球菌

C.金黄色葡萄球菌

D.肠球菌

E.厌氧脆弱类杆菌

答案

参考答案：A

解析：继发性腹膜炎常为腹腔器官穿孔引起，肠内多为大肠杆菌，是最常见病原菌。

阅读理解

Some friends have opposite views and interests, and some like the same things. What are your opinions? Should friends be different or the same? We asked some people what they think and this is what they said.

小题1:James Green’s best friend is Yuan Li because she is       .

A．smart

B．quiet

C．athletic

D．outgoing小题2:From the passage, we know that Huang Lei is        than his friend Larry.

A．quieter

B．more athletic

C．more outgoing

D．taller小题3:Carol is Mary’s best friends because       .

A．she is a quiet girl

B．she is funny and outgoing

C．they both like sports

D．she does the same things as Mary小题4:From the passage, we know that        is / are outgoing.

A．Yuan Li

B．Larry

C．Larry and Carol

D．Huang Lei and Mary小题5:Which of the following about Huang Lei is TRUE?

A．He is an outgoing boy.

B．He likes to have friends who are quiet.

C．He is funny, and more athletic than Larry.

D．He likes to make friends different from him.
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单项选择题 案例分析题

读“某河流干流和流域范围示意图”，回答下列各题。

图中河流的乙～丙河段流域范围非常狭窄，其主要原因是（）

A．水流湍急落差大

B．高山束缚支流短

C．高原气候降水少

D．泥沙淤积河床高
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