题目内容

Investors should be more ________in their assessment of what profitable business means.

A. biased
B. abstract
C. equal
D. balanced

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There is talk of raising the admission requirements to ________ the number of minority students on campus.

A. restrict
B. strain
C. contain
D. retain

Complete the sentences in Column A with phrases chosen from Column B.

1.细菌性痢疾的好发部位是

A. 回肠
B. 结肠上段
C. 空肠
D. 直肠和乙状结肠
E. 盲肠

2.进入消化管的痢疾杆菌大部分被下列何种物质杀灭?

A. 唾液
B. 十二指肠液
C. 肠黏膜表面分泌性IgA
D. 肠道正常菌群(拮抗作用)
E. 胃酸

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