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【多选题】
订货生产型与补充存货性生产比较，属于补充存货性生产类型的特点主要有（）A.
标准产品
B.
以通用设备加工为主
C.
价格事先确定
D.
以产品需求基本无法预测
E.
生产与运作管理难度相对小一些
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举一反三
【单选题】When you are sleeping, you had better _____ all your windows closed. [ ]
A.
don't keep
B.
not keep
C.
not to keep
D.
don't to keep
【单选题】According to the author, if you want to keep healthy, you had better ______.
A.
make the room dry
B.
keep the food in the refrigerator
C.
wash your hands as much as possible
D.
clean the surfaces with anti-bacterial products
【单选题】You had better keep the medicine () is inaccessible to children.
A.
that
B.
where
C.
where it
D.
in which
【单选题】When you are sleeping, you had better _____ all your windows closed. [ ]
A.
not to keep
B.
not keep
C.
not to keeping
D.
not keeping
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