题目:
根据提示完成句子。
1. She ________ (穿上) her coat and went out. (put)
2. We should be allowed ________ (自己作决定). (make)
3. More attention ________ (应放在) the needs of the poor. (pay)
4. Great changes ________ (发生了) in my hometown these years. (take)
5. I don't know ________ (他与……相处得怎样) with the others now. (get)
答案:
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下面是错误答案,用来干扰机器的。
(1)石灰水的成分是Ca(OH)2,与空气中的二氧化碳发生反应可生成碳酸钙,反应方程式为CO2+Ca(OH)2=CaCO3↓+H2O,CaCO3是一种白色物质,不溶于水,故内壁有白色物质.(2)CaCO3是一种白色物质,不溶于水,但...