In two years' time there is a presidential election, and the voters could ________ again.
A. sway
B. slip
C. slide
D. swing
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Investors should be more ________in their assessment of what profitable business means.
A. biased
B. abstract
C. equal
D. balanced
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