Most environmental_______— from climate changes to freshwater and forest habitat loss — have become markedly worse.

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问题 Most environmental_______— from climate changes to freshwater and forest habitat loss — have become markedly worse.

选项 A、symptoms
B、highlights
C、indicators
D、symbols

答案C

解析 四个选项的意思分别是indicators标识,指示物;symptoms(疾病的)症状;highlights最好的部分;symbols符号,象征。句意是,许多环境指标,从气候变化到淡水和森林栖息地的损失,已经恶化,并且越来越明显。所以正确答案是C选项,如The foreign minister’s visit can be taken asone more indicator that the relationships between the two countries are improving.(外长的访问可以被看作是又一个信号,说明两国关系在改善)。
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