浓缩塔操作中,进料至分散器,分散器以上的部分(包括分散器)称为()。
A.原料预热段
B.提馏段
C.精馏段
D.汽提段
参考答案:C
句型转换。
1. The children are enjoying themselves happily. (变为同义句)
The children are _______ _______ _______ ________.
2. Jack is doing his homework. (变为一般疑问句,并作否定回答)
______ Jack _______ his homework? No, he _______.
3. His sister is standing in front of the house. (变为同义句)
The girl _______ ________ _______ ________ the house is his sister.
4. He likes maths because it's interesting. (就画线部分提问)
_______ _______ he _______ maths ?
5. It's sunny in Paris now. (就画线部分提问)
_______ _______ _______ in Paris now?
社会工作者是遵循社会工作的价值准则,运用一定的( ),从事职业性社会服务人员。
A.理论基础
B.实践积累
C.专业知识
D.文化学历