皮皮学,免费搜题
登录
搜题
【简答题】
简要说明变压器激磁电抗和漏抗的物理意义。它们分别对应什么磁通,对已制成的变压器,它们是否是常数?当电源电压降低时,它们如何变化?这两个电抗大好还是小好,为什么?
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】可以通过以下几种方法退出AutoCAD2018软件?
查看完整题目与答案
【单选题】I ___ my breakfast when the morning post came. A. had B. had been having C. have been having D. was having
A.
had
B.
had been having
C.
have been having
D.
was having
查看完整题目与答案
【单选题】When______that their apartment had been broken into, they quickly called the police.
A.
found
B.
to be found
C.
finding
D.
having found
查看完整题目与答案
【简答题】近视眼在生活中很不方便,产生近视眼的原因是眼球在______方向上太长,因此来自远处某点的光会聚在视网膜______;产生远视眼的原因是______太薄,______能力太弱,因此来自近处一点的光还没有会聚成一点就到达视网膜.
查看完整题目与答案
【单选题】退出Word可以有多种方法,()无法退出Word。
A.
双击Word左上角的小方框
B.
在“文件”菜单下选择“退出”命令
C.
按Alt+F4
D.
Alt+F5
查看完整题目与答案
【单选题】退出Word可以有多种方法,()无法退出Word。
A.
双击Word左上角的小方框
B.
在“文件”菜单下选择“退出”命令
C.
按Alt+F4键
D.
按Alt+F5键
查看完整题目与答案
【多选题】4 种方法可退出 Excel
A.
单击“文件”菜单的“退出”命令。
B.
单击窗口右上角的关闭按钮。
C.
同时按下 Alt + F4 组合键。
D.
双击 Excel2010 标题栏 最左边的控制菜单按钮
查看完整题目与答案
【单选题】Though ______, many laws of nature exist.
A.
not having been discovered
B.
having not been discovered
C.
not having discovered
D.
having not discovered
查看完整题目与答案
【简答题】如果光线进入眼球经过( )后,不能在视网膜上聚焦形成清晰的( ),大脑皮层也就不能形成清晰的( ),即产生屈光不正。
查看完整题目与答案
【单选题】. __ many times, but he still wouldn't listen.
A.
Having told
B.
Having been told
C.
He having been told
D.
He was told
查看完整题目与答案
相关题目:
【简答题】可以通过以下几种方法退出AutoCAD2018软件?
查看完整题目与答案
【单选题】I ___ my breakfast when the morning post came. A. had B. had been having C. have been having D. was having
A.
had
B.
had been having
C.
have been having
D.
was having
查看完整题目与答案
【单选题】When______that their apartment had been broken into, they quickly called the police.
A.
found
B.
to be found
C.
finding
D.
having found
查看完整题目与答案
【简答题】近视眼在生活中很不方便,产生近视眼的原因是眼球在______方向上太长,因此来自远处某点的光会聚在视网膜______;产生远视眼的原因是______太薄,______能力太弱,因此来自近处一点的光还没有会聚成一点就到达视网膜.
查看完整题目与答案
【单选题】退出Word可以有多种方法,()无法退出Word。
A.
双击Word左上角的小方框
B.
在“文件”菜单下选择“退出”命令
C.
按Alt+F4
D.
Alt+F5
查看完整题目与答案
【单选题】退出Word可以有多种方法,()无法退出Word。
A.
双击Word左上角的小方框
B.
在“文件”菜单下选择“退出”命令
C.
按Alt+F4键
D.
按Alt+F5键
查看完整题目与答案
【多选题】4 种方法可退出 Excel
A.
单击“文件”菜单的“退出”命令。
B.
单击窗口右上角的关闭按钮。
C.
同时按下 Alt + F4 组合键。
D.
双击 Excel2010 标题栏 最左边的控制菜单按钮
查看完整题目与答案
【单选题】Though ______, many laws of nature exist.
A.
not having been discovered
B.
having not been discovered
C.
not having discovered
D.
having not discovered
查看完整题目与答案
【简答题】如果光线进入眼球经过( )后,不能在视网膜上聚焦形成清晰的( ),大脑皮层也就不能形成清晰的( ),即产生屈光不正。
查看完整题目与答案
【单选题】. __ many times, but he still wouldn't listen.
A.
Having told
B.
Having been told
C.
He having been told
D.
He was told
查看完整题目与答案