倡导“免赠贺卡”、“免用一次性木筷”的出发点是_刷题宝

题干

倡导“免赠贺卡”、“免用一次性木筷”的出发点是（）

A：减少个人经济支出

B：移风易俗

C：减少固体垃圾污染

D：节约木材，保护森林

上一题下一题 0.0难度选择题更新时间:2019-11-14 12:47:38

答案(点此获取答案解析）

D

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如图，M是△ABC的边BC的中点，AN平分∠BAC，且BN⊥AN，垂足为N，且AB=6，BC=10，MN=1.5，求△ABC的周长．

同类题2

如图，已知二面角α－PQ－β的大小为60°，点C为棱PQ上一点，A∈β，AC＝2，∠ACP＝30°，则点A到平面α的距离为( )

同类题3

下列说法不正确的是（）

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化学新材料的应用，使人们的生活质量不断提高。下图是不同年代常用的水管。

同类题5

A : What's your favourite invention?

B : Of course computers. They are very important in people's life now.

A: I like computers, too. I think they will be used even more widely in the future.

B: I agree with you.

A: I usually use my computer for looking up information reading books and playing games;

B: Do you like shopping online?

A : Yes, of course.

B: That's true. However, sometimes it isn't safe to buy things online.

A: Yes, so we should be careful when shopping online. What do you like to do with your computer?

B:

A: You must have many net friends.

B: Sure. I have about 10 friends who are from different countries.

A:

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