石膏制品具有良好的抗火性，主要是因为()。
A.石膏制品保温性好
B.石膏制品高温下不变形
C.石膏制品孔隙率大
D.石膏制品含有大量结晶水
参考答案：D
工资项目的预算首先应当分析当地政府有关部门本年度发布的()对工资预算的影响，如有变化应进行必要的调整。
A.平均工资标准
B.最高工资标准
C.最低工资标准
D.消费物价指数
同义句转换。
1. He paid 6 yuan for a bowl of beef potato noodles.
He _________ 6 yuan _________ a bowl of beef potato noodles.
2. Do you think everyone has a great weekend ?
Do you think _________ a great weekend?
3. The poor girl has no food and no shoes.
The poor girl has no food _________.
4. It's time to have dinner.
It's time _________.
5. Ann didn't have any friends Ann _________.
