题干

物理课本有很多的插图,对于我们学习物理有很大的帮助.下列叙述中错误的是(   )

A:描述做功改变物体内能

B:电磁感应实验

C:给受油机加油时,空中匀速飞行的加油机机械能不变

D:探究音调跟频率的关系

上一题 下一题 0.0难度 选择题 更新时间:2019-06-12 05:07:37

答案(点此获取答案解析)

C

同类题1

根据材料内容,从方框中选择合适的句子填入文中空白处,使材料完整、通顺。其中有一个句子是多余的。

B

    Michelle Giaquinto is from Australia.She is working as a cook in a restaurant in Italy.She has traveled to over 30 countries.She is having a talk with a reporter about her travels.

(Q=Question;A=Answer)

Q:What's the most beautiful place you're ever been to?

A:It's difficult to choose“the most beautiful”place I've visited, because every place is beautiful in its own way.But I have very good memories of the Himalayan mountains in Nepal.

Q:____

A:I stayed in a beautiful hotel in Marrakech.Morocco.It wasn't very big, but it had a green yard with a fountain(喷泉)in the middle.The colorful tiles(瓷砖)everywhere were fantastic.

Q:____

A:Fried crickets(油炸蟋蟀)on the street in Bangkok, Thailand.And they weren't bad.

Q:____  

A:I have always been very lucky in my travels.But someone stole (偷)my bag on a train when I was in India.Getting very ill in a lonely part of Pakistan wasn't very nice,either.

Q:____

A:Indonesia.a country with a very interesting culture.I plan to go there next year.

Q:____

A:Australia has so many interesting places to visit, as it's so large.But my favorites are the sights(风景)along the Great Barrier Reef, North Queensland.I also love the big,open spaces of our deserts and national parks,especially Uluru National Park.

A.What's the most interesting place you're visited in your own country?

B.Which country have you always wanted to visit?

C.Have you ever made any friends while traveling?

D.What's the nicest hotel you're ever stayed in?

E.What's the strangest thing you're ever eaten in your travels?

F.Have you had any bad experiences while traveling?