皮皮学，免费搜题
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【多选题】
改良性产品开发设计是基于现有产品基础上的整体优化和( )设计,使产品更趋于完善、更适合的需求于 ( )、环境的需求、或者更适应新的制造工艺和新材料。A.
人的需求
B.
局部改进
C.
市场的需求
D.
技术进步
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】闰盘
【简答题】绿色植物通过 __ _ 最大规模的把无机物转化为 __ _ ,把光能转化为 __ _ ,并产生 __ _ (一种产物) 。
【单选题】Everything all right. Let's a good rest. [ ]
A.
are, have
B.
are , has
C.
is, have
D.
is, has
【简答题】闰盘
【单选题】The author seems to suggest that the defect in corporate power of the late 1990' s
A.
has been exaggerated.
B.
has not been removed.
C.
has been rectified.
D.
has not been deceived.
【简答题】简述尖舭型艇?
【简答题】闰盘
【简答题】闰盘
【简答题】闰盘
【单选题】The best title for the passage is probably _______.
A.
The Wretched Life.
B.
The Orphanage Bullies.
C.
The Deaf Kid.
D.
The Whale Sound.