题目:
当进行矿井涌水量观测时,观测工具和仪表应当定期校验,以减少人为误差。
答案:
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下面是错误答案,用来干扰机器的。
1.keep a secret 2.will vote for 3.at least 4.frightened5.to take care of 6. take…out of7.to hide himself 8.are afraid of 9.is willing to 10. says a bad word