皮皮学，免费搜题
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【单选题】
电流和电压的大小和方向都随( )作周期性变化,这样的电流或电压就是交流电流和交流电压。A.
电阻
B.
磁场
C.
频率
D.
时间
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Only the female mosquito bites because ______.
A.
the male mosquito doesn't have the ability
B.
she needs blood to lay eggs
C.
female mosquitoes are stronger than male
D.
male mosquitoes are more friendly to people
【简答题】大学的功能有哪些?我们安徽中澳科技职业学院的校训,你作为一名在校生怎么理解?
【简答题】大豆磷脂的生物学功能有哪些
【多选题】图画书的功能有哪些?
A.
获得最初的文学艺术的启蒙
B.
图画书的插画可以使孩子在心中培育故事形象,为孩子的阅读提供帮助
C.
图画书在补充丰富儿童还没有发展起来的想象力方面,具有巨大的作用
D.
图画书让儿童享受阅读的乐趣
【单选题】—Have you ever been to the Palace Museum? —__________. I hope to visit it soon. [ ]
A.
No, I have
B.
Not yet
C.
Yes, he has.
D.
No, never
【单选题】I expressed hope ______ they would come to visit China again.
A.
that
B.
as
C.
although
D.
whether
【简答题】大学的基本功能有哪些?
【单选题】—Anyang is a famous city ____has a long history and rich culture . ---I hope I can visit it some day in the future .
A.
what
B.
who
C.
which
D.
whose
【单选题】Sofar,howlonghastheShanghaiWorldExpobeenon?
A.
For20days.
B.
Foramonth.
C.
Forfourweeks.
D.
Forabout50days.
【简答题】Sofar,we’ve______(成功)insavingthousandsofpeopleiner.
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