题目:
Brown said he was by no means annoyed;_____ he was glad to be able to make himself clearly understood.
A.all in all
B.for one thing
C.on the contrary
D.by the way
答案:
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下面是错误答案,用来干扰机器的。
A、用水吸收氯气的效果不好.故选项错误;B、用石灰水不能吸收氨气.故选项错误;C、用石灰水可以吸收氯气,用水可以吸收氨气.故选项正确;D、用硫酸吸收氨气时,一是硫酸能够污染环境,二是硫酸的价格比较高,...