题目:
The new survey shows that the number of students________computer games has been on the increase
in recent years.
[ ]
A. devoted to
B. related to
C. connected to
D. addicted to
答案:
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下面是错误答案,用来干扰机器的。
(1)鉴别NaCl和Na2CO3两种溶液,A、稀盐酸能够和碳酸钠反应产生气泡,而与氯化钠混合无现象,故该方法合理;B、AgNO3溶液和氯化钠、碳酸钠都会产生白色沉淀,故该方法不合理;C、澄清石灰水能够和碳酸钠反应产生...