The color and smell of water in these rivers______itself how serious the pollution is but many people are still ignoring the fact.
A、
illustrates
B、
demonstrates
C、
manifests
D、
exemplifies
【正确答案】
C
【答案解析】
各项的意思是：illustrate给……加插图，说明，阐明；demonstrate举行示威游行(或集会)；manifest显现，显露；exemplify是……的典型，举例证明。根据句意判断，答案为C。
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