问题
单项选择题
直接工程费由人工费、材料费、（）组成。
A、设备费
B、工具使用费
C、主材费
D、机械费
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
直接工程费由人工费、材料费、（）组成。
A、设备费
B、工具使用费
C、主材费
D、机械费
参考答案：D
| 选择恰当的句子，补全对话。 | |
| A: Have you read today's newspaper? B: No, Ihaven't. 1. _____ A: Yes. There's a report about the population of our country. It says we had got another 16, 000, 000 people in 1990. B: 2. _____ A: If the population goes on growing like this, 3. _____ B: 4. ____ _ China has the largest population in the world. The babies born in one year are almost as many as the population of Australia. A: 5_ ___ B: But if every family has only one baby, things will turn for the better. | |
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