现在,不少城市已开始使用“西气东输”工程送来的天然气。天然 气的主要成分是CH4,下图为四位同学在讨论化学式CH4的意义, 其中错误的是[ ]
A.
B.
C.
D.
答案:D
句型转换
小题1:She often does her homework at night. (变为否定句)
She her homework at night.
小题2:We are cleaning our classroom now. (对划线部分提问)
you now?
小题3:He likes pandas because they are very cute. (对划线部分提问)
he pandas?
小题4:I think he is in the classroom.(改为否定句)
I think he in the classroom.
小题5:Mr Black is a doctor.(对划线部分提问)
Mr Black ?
下面各项中,不属于设计过程质量管理的是( )。
A.建立设计经理质量责任制
B.明确设计各部室的质量职责
C.建立安全、消防部门
D.设计工作各有关方的衔接