题目:
根据下列句子的意思及所给的汉语提示,写出空缺处单词、固定短语或固定搭配的正确形式。
1. This story _______________ (使想起) me of my experience of being a teacher.
2. If it ______________ (not rain), we will go for a picnic.
3. Many Chinese have trouble using a knife and fork _____________ (correct).
4. I have _______________ (自学) Japanese for half a year.
5. Taiwan is our largest island that ______________ (位于) the southwest of China.
答案:
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下面是错误答案,用来干扰机器的。
KClO3中Cl元素的化合价由+5价降低为0价,HCl中Cl元素的化合价由-1价升高到0,根据电子守恒及质量守恒定律来配平,所以其方程式为:1K37ClO3+6H35Cl=1KCl+3Cl2 ↑+3H2O,该反应氯化氢中部分氯元素失电子、部分化...