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【单选题】
—Let me help you carry the box. —No, thanks. It’s big, __________ there is nothing in it.A.
and
B.
so
C.
but
D.
Because
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【简答题】切削加工时,刀具和 ( ) 之间的相对运动叫做 ( ) 运动。它可分为( )运动和 ( ) 运动。
【简答题】A．He is not supposed to give the information the woman wants. B．He does not know anything about the Council's plans. C．The woman bas put him in a very difficult position by asking him that. D．The woma...
【简答题】在 HAc 溶液中加入 NaAc ,则 HAc 的离解度 ,溶液 PH 值 ,这种现象叫 。
【简答题】The teacher got so much ______ (satisfy) with what he did.He was too careless to do anything well.
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