保持婴幼儿居室的空气清新和适宜的温度要经常通风、定期扫除、()。
A、用清新剂
B、常开空调
C、家具消毒
D、注意绿化
参考答案:D
句型转换。
1. The old man drinks a cup of milk every morning.(画线部分提问)
______ ______ ______ does the old man drink every morning?
2. He spent two days mending the computer.(改为同义句)
It ______ ______ two days ______ ______ the computer.
3. He is good at basketball.(同义句转换)
He ______ ______ ______ basketball.
4. The baby sleeps twenty hours a day.(划线部分提问)
______ ______ does the baby sleep a day?
5. Did you have a good time last week?(同义句转换)
Did you ______ ______ last week?
城镇污水处理厂污染物排放基本控制项目中共有( )。
A.(A) 20项
B.(B) 12项
C.(C) 7项
D.(D) 19项