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问题
单项选择题
成型煤在炼焦时能使煤料（）。
A．结焦性好，粘结性差
B．结焦性与粘结性都好
C．结焦性差，粘结性好
答案
参考答案：B
选择题
— It's said that you have moved into a new house.
— Yeah, and we need to buy some
in the mall nearby.
A. food
B. furniture
C. hamburger
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问答题
药物不良反应
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