问题
填空题
根据中文提示，用词组的适当形式填空。
1. You should read English for _______ (至少) half an hour every day.
2. The price of the houses in Xiamen is _______ (与…不同) that in Fuzhou.
3. I'd like to listen to music _______ (代替) watching a bad TV program.
4. They have _______ (谈论) the film many times since they saw it.
5. _______ (查找) the new words in the dictionary if you don't know them.
答案
1. at least 2. different from 3. instead of 4. talked about 5. Look up
Si+2CO，该化学反应的基本类型是 _________ ．