单选题_____AswelledBincreasedCexpandedDgrew

单选题
_____
A

swelled

B

increased

C

expanded

D

grew


参考解析

解析:
swell侧重指“上下、左右、前后的面或体的伸展”;expand强调扩大范围,扩大的力量可能来自于部也可能来自于外部;increase指“指数目、数量、体积的增长,通常表示具体增长的幅度”。如上题的分析,污染的增加是导致人死亡的一大原因。故选B。

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