设计周期定额不包括()。
A．设计前期工作
B．初步设计
C．技术设计
D．施工图设计
参考答案：A
请将括号中的单词放在句子中的适当位置。
1. They go to the cinema. (often)
_________________
2. He has lunch at school. (always)
3. I come to school late. (never)
4. My friends play table tennis after school. (usually)
________________
5. She helps her mother with housework. (sometimes)
MCS-51单片机的数据存储器是指外部存储器。（）
