One of the effective ways to lessen environmental pollution is the reservation and protection of more swamps.

参考答案： B

解题思路：名词辨析。swamp沼泽，湿地，煤层聚水洼：The swamp country is inclined to poach in winter．这片沼泽地带在冬季一踏就陷下去了。pockets of wet land小块湿地。coral 珊瑚；volcano火山；bees and wasps蜜蜂和黄蜂。>>>立即刷题

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