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【单选题】
以下对物料替代关系描述正确的是（）A.
不能设定优先级
B.
不能设定有效时间
C.
可以设定为某个BOM有效
D.
以上选项都不正确
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】核酸完全的水解产物是____、戊糖和____。其中____又可分为____碱和(嘧啶)碱。
【单选题】_____ apples and milk on sale in this Downtown Supermarket.
A.
There are
B.
There aren't
C.
There isn't
【简答题】500°C以下的中低温通常可以采用( )来测量。
【简答题】核酸完全的水解产物是磷酸、戊糖和_______(其又可分为______和_____两类)。
【单选题】_____apples and milk on sale in this shop
A.
3
B.
There are
C.
There is
D.
There isn't
【简答题】____ some apples and milk on sale
in this supermarket.A. There are B. There is C. There isn’t D. There aren’t
【单选题】Cui Jianping who gave his life to save a girl in America ten years ago was _____ honour to our school. A memorial is held here every year in _____ honour of him. [ ]
A.
an; the
B.
an; /
C.
the; the
D.
/; /
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