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Parents are supposed to monitor their children on the Internet, in case some bad information would         teenagers’ mind.
A.hurtB.polluteC.assessD.furnish
B

这题考查词义辨析:hurt伤害,B. pollute 污染,C. assess评估,D. furnish布置,句意是:
家长应该监控孩子在互联网上,防止一些不良信息污染青少年的心。选B。
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