消毒是对经过()级处理后的城市污水的深度处理。
A.一
B.二
C.三
D.初
参考答案:B
对于主动性异位心律,下列哪项不正确()
A.阵发性房性心动过速
B.室性期前收缩
C.心室颤动
D.心房颤动
E.预激综合征
词型转换。
1. Our English _______ name is Miss Li. (teacher)
2. Are those your ________? No, they aren't. (box)
3. The _______ lesson is very interesting. (three)
4. Is this your bike? No, it's ______. (she)
5. It's a nice book. Please let ______ have a look. (we)
6. I can see three ______ in the room. (people)