皮皮学,免费搜题
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搜题
【单选题】
一个长方体钢坯锻造成正方体,长方体和正方体( )。
A.
体积相等,表面积不相等
B.
体积和表面积都不相等
C.
表面积相等,体积不相等
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举一反三
【单选题】下面哪些药属于头孢类抗菌药 ?
A.
头孢克肟
B.
阿莫西林
C.
氧氟沙星
D.
阿奇霉素
【单选题】加涅信息加工系统中的第二级是( )
A.
感受器
B.
感觉记忆
C.
短时记忆
D.
长时记忆
【判断题】逆导晶闸管不可用于直流调速、中频感应加热及逆变电路中。
A.
正确
B.
错误
【判断题】The symbol "GB/T 14689-2008" denotes that the concern national standard is compulsory.
A.
正确
B.
错误
【单选题】Select the figure that has correct surface roughness symbol according to the latest National Standard. (Single option: 10 points)
A.
(3)
B.
(1)
C.
(2)
D.
None
【单选题】Select the figure that has correct surface roughness symbol according to the latest National Standard. (Single option: 10 points)
A.
(2)
B.
(1)
C.
(3)
D.
None
【判断题】浏览器/服务器模式的结构特点是维护和升级简单
A.
正确
B.
错误
【判断题】The symbol "GB/T 14689-2008" denotes that the concern national standard is compulsory.
A.
正确
B.
错误
【单选题】Select the figure that has correct surface roughness symbol according to the latest National Standard. (Single option: 10 points)
A.
(1)
B.
(2)
C.
(3)
D.
None
【单选题】Select the best figure that has correct surface roughness symbol according to the latest National Standard. (Single option: 10 points)
A.
(1)
B.
(2)
C.
(3)
D.
None
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