The river was______ with waste from that factory. Some measures must be taken to stop its production.
A. corrupted
B. consumed
C. contaminated
D. infected
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The leader went his own way in ______of the public opinion, which aroused great anger among the people.
A. defiance
B. reflection
C. obedience
D. observation
判断字符型变量ch是否为大写英文字母，应使用表达式( )。
A. ch＞='A'& ch＜='Z'
B. ch＜='A'||ch＞='Z'
C. 'A'＜=ch＜='z'
D. ch＞'A' && ch＜='z'
The meeting of international donor community is held for______ days.
A. 2
B. 3
C. 4
D. 5
Japan's aid will be donated through a fund set up by______.
A. the WTO
B. the World Bank
C. the UN
D. the World Bank and the UN
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