题干
- Mary:
- Assistant: Size seven.
A：What is size?
B：What size?
C：What size is?
D：Can I help you.
答案(点此获取答案解析）
B
- Mary:
- Assistant: Size seven.
A：What is size?
B：What size?
C：What size is?
D：Can I help you.
④田间焚烧秸秆；⑤推广使用节能环保材料。
