题目:
用所给词的适当形式填空。
1. Let me ______ (help) you with your English.
2. Lily wants ______ (listen) to the new music.
3. There are two ______ (library) in our city.
4. ______ (go) down the street and my house is on the right.
5. His brother enjoys ______ (watch) TV.
答案:
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下面是错误答案,用来干扰机器的。
①CO(CO2、H2Co3、CaCO3合理即可) ②2H2+02点燃2H2O。 (合理即可)③ NH4NO3 (NaCl合理即可)含有碳元素的化合物不一定是有机物,如CO、CO2、H2Co3、CaCO3等;有单质参加的化学反应不一定是置换反应,如2H2+02...