不能克服锅炉虚假水位的给水控制系统是()控制系统。
A、双冲量给水
B、单冲量给水
C、三冲量给水单级
D、三冲量给水串级
参考答案:B
句型转换。
1. Both Lucy and Lily have been to the Great Wall. (改为否定句)
_____ Lucy _____ Lily has been to the Great Wall.
2. The book cost ten yuan. (对画线部分提问)
_____ _____ _____ the book cost?
3. He was reading a novel when the teacher came in. (改为一般疑问句)
_____ _____ reading a novel when the teacher came in?
4. Where does he live? I don't know. (改为含有宾语从句的句子)
I don't know______ _____ _____.
依据《环境影响评价法》,建设项目环境影响评价文件白批准之日起超过( )年,方决定该项目开工建设的,其环境影响评价文件应当报原审批部门重新审核。
A.2 B.4 C.5 D.6