问题
多项选择题
机组割煤后及时移架，根据（）情况采取相应的移架措施和步距。
A.顶板破碎
B.采高
C.煤墙片帮
D.产量
答案
参考答案：A, C
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机组割煤后及时移架，根据（）情况采取相应的移架措施和步距。
A.顶板破碎
B.采高
C.煤墙片帮
D.产量
参考答案：A, C
| 补全对话 | |
Lisa: I want a jacket. Clerk: (2)_____ Lisa: Size L． Clerk: (3)_____ Lisa: I like blue. Clerk: (4)_____ We don't have blue jackets in your size. We have a black one and a red one in your size. Lisa: Let me see the black one, please. Clerk: Here you are. Lisa: Oh,it's nice. (5)_____ Clerk: $30． Lisa: I'll take it. Thanks. |