皮皮学，免费搜题
登录
搜题
【单选题】
关于供给价格弹性和供给价格弹性系数的要点，说法错误的是( )。
A.
供给价格弹性是供给量变动对价格变动的反应程度
B.
供给价格弹性系数的数值一般都为正值
C.
供给价格弹性系数反映供给量与价格反方向变动的供给规律
D.
一条供给曲线上不同点的供给价格弹性系数大小并不一定相同
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
【单选题】When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）
A.
profile
B.
domain map
C.
DHCP server
D.
RADIUS server
查看完整题目与答案
【简答题】Please use the following information to prepare the adjusting journal entries. On November 1, the Institute agreed to do a special five-month course (starting immediately) for a . The contract c...
查看完整题目与答案
【简答题】A growing body of evidence suggests that the most significant thing about college is not where you go, but what you do once you get there. Historian and educator Ken Bain 1 a road map for students in ...
查看完整题目与答案
【多选题】下列关于真值表描述中正确的有
A.
真值表是列出了部分输入值组合及其对应输出值的表格
B.
真值表包括了全部可能的输入值组合及其对应的输出值
C.
真值表中的数值“0”和“1”表示实际大小
D.
真值表是一种表明逻辑门电路输入状态和输出状态对应关系的表格
查看完整题目与答案
【单选题】一台额定电压为220V的三相异步电动机定子绕组D接线,若启动时定子绕组改成Y接线,且接在380V的交流电源上,则电机的( )。
A.
启动转矩增大
B.
启动转矩减小
C.
启动转矩不变
查看完整题目与答案
【单选题】一台额定电压为220V的三相异步电动机定子绕组三角形接线，若起动时定子绕组改成星形接线，且接在380V的交流电源上，则电机的（  ）？
A.
起动转矩增大
B.
起动转矩减小
C.
不一定
D.
起动转矩不变
查看完整题目与答案
【单选题】Go and get your book. It’s _____ you left it.
A.
that
B.
which
C.
what
D.
where
查看完整题目与答案
【单选题】有一台三相异步电动机,每相定子绕组额定电压为220V, 当接到线电压为380V的三相电源上时,此电动机要采用( )联结方法。 A Y形 B △形 C Y形或△形都可以 D 无法判断
A.
B.
C.
D.
D
查看完整题目与答案
【简答题】(三) Parents are the first teacher of children. Mum and Dad—they're two of the most important people in your life. You p 1 see at least one of them every day and , over your life time, they're likely t...
查看完整题目与答案
【简答题】Budget airlines seem to be attractive and may reduce your travel cost a lot, but there are some things to note when you’ve taken a budget carrier. Use a flight aggregator such as Skyscanner, Kayak, Tr...
查看完整题目与答案
相关题目：
【单选题】When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）
A.
profile
B.
domain map
C.
DHCP server
D.
RADIUS server
查看完整题目与答案
【简答题】Please use the following information to prepare the adjusting journal entries. On November 1, the Institute agreed to do a special five-month course (starting immediately) for a . The contract c...
查看完整题目与答案
【简答题】A growing body of evidence suggests that the most significant thing about college is not where you go, but what you do once you get there. Historian and educator Ken Bain 1 a road map for students in ...
查看完整题目与答案
【多选题】下列关于真值表描述中正确的有
A.
真值表是列出了部分输入值组合及其对应输出值的表格
B.
真值表包括了全部可能的输入值组合及其对应的输出值
C.
真值表中的数值“0”和“1”表示实际大小
D.
真值表是一种表明逻辑门电路输入状态和输出状态对应关系的表格
查看完整题目与答案
【单选题】一台额定电压为220V的三相异步电动机定子绕组D接线,若启动时定子绕组改成Y接线,且接在380V的交流电源上,则电机的( )。
A.
启动转矩增大
B.
启动转矩减小
C.
启动转矩不变
查看完整题目与答案
【单选题】一台额定电压为220V的三相异步电动机定子绕组三角形接线，若起动时定子绕组改成星形接线，且接在380V的交流电源上，则电机的（  ）？
A.
起动转矩增大
B.
起动转矩减小
C.
不一定
D.
起动转矩不变
查看完整题目与答案
【单选题】Go and get your book. It’s _____ you left it.
A.
that
B.
which
C.
what
D.
where
查看完整题目与答案
【单选题】有一台三相异步电动机,每相定子绕组额定电压为220V, 当接到线电压为380V的三相电源上时,此电动机要采用( )联结方法。 A Y形 B △形 C Y形或△形都可以 D 无法判断
A.
B.
C.
D.
D
查看完整题目与答案
【简答题】(三) Parents are the first teacher of children. Mum and Dad—they're two of the most important people in your life. You p 1 see at least one of them every day and , over your life time, they're likely t...
查看完整题目与答案
【简答题】Budget airlines seem to be attractive and may reduce your travel cost a lot, but there are some things to note when you’ve taken a budget carrier. Use a flight aggregator such as Skyscanner, Kayak, Tr...
查看完整题目与答案