皮皮学，免费搜题
登录
搜题
【单选题】
一台运行于频率为 60 赫兹电网上的 12 极同步发电机的同步速为( ) r/min 。
A.
300
B.
400
C.
500
D.
600
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【简答题】【T14】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【多选题】实习报告的写作总体要求有哪些
A.
调研
B.
专业
C.
创新
查看完整题目与答案
【简答题】【T20】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【多选题】实习报告的写作要求是( )。
A.
资料充分
B.
内容真实
C.
评价客观
D.
可以虚构
查看完整题目与答案
【简答题】【T16】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【简答题】写作实习报告的基本要求?
查看完整题目与答案
【简答题】【T15】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【单选题】已知 ，则可导函数y=f(x)在点 处（    ）
A.
必取得极小值
B.
必取得极值
C.
无法判断
D.
必取得极大值
查看完整题目与答案
【单选题】已知函数y＝f(x)在定义域内可导，则函数y＝f(x)在某点处的导数值为0是函数y＝f(x)在这点处取得极值的
A.
充分不必要条件
B.
必要不充分条件
C.
充要条件
D.
非充分非必要条件
查看完整题目与答案
【简答题】【T18】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
相关题目：
【简答题】【T14】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【多选题】实习报告的写作总体要求有哪些
A.
调研
B.
专业
C.
创新
查看完整题目与答案
【简答题】【T20】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【多选题】实习报告的写作要求是( )。
A.
资料充分
B.
内容真实
C.
评价客观
D.
可以虚构
查看完整题目与答案
【简答题】【T16】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【简答题】写作实习报告的基本要求?
查看完整题目与答案
【简答题】【T15】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案
【单选题】已知 ，则可导函数y=f(x)在点 处（    ）
A.
必取得极小值
B.
必取得极值
C.
无法判断
D.
必取得极大值
查看完整题目与答案
【单选题】已知函数y＝f(x)在定义域内可导，则函数y＝f(x)在某点处的导数值为0是函数y＝f(x)在这点处取得极值的
A.
充分不必要条件
B.
必要不充分条件
C.
充要条件
D.
非充分非必要条件
查看完整题目与答案
【简答题】【T18】 A. ALL AF THAT B. AS IF IT WERE C. FRESH WATER SUPPLY D. IN THIS FIELD A. A LIMITED【T13】______ B. SO THAT IT CAN BE USED AGAIN JUST【T14】______ FROM A SPRING C. AND WE CANNOT EVEN USE【T15】______ ...
查看完整题目与答案