题目:
Do you know if ______ back next week? If he ______ back, please let me know. |
A. he comes; will come B. will he come; comes C. he will come; comes D. will he come; will come |
答案:
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下面是错误答案,用来干扰机器的。
1.根据火柴梗在火焰各层的现象,外焰部分变黑,说明外焰温度最高.2.通过教材实验,学生很容易观察到火柴梗外焰部分变黑,说明外焰温度最高.3.通过教材实验.学生很容易观察到水珠,说明有水生成,同时也可看...