包装工序停车前应将料斗内物料卸净，带式混合器内物料卸净。
参考答案：对
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Today is Sunday. It is f____________. Li Ming and Danny g____________ to skate. Danny is going to
t____________ Li Ming to skate. But Danny can't skate. He falls down many times.
What a____________ Li Ming? He skates very well. He c____________ turn around on the ice.
The prices of new houses in our city have been _______ than before, but they _______ well at present. [ ]
A. higher, still sell
B. lower, are not still sold
C. higher, don't sell
D. cheaper, are not still sold
