不定项选择为了准确地测出平抛轨道上某点的坐标,需要注意的是 ( ) A.选距原

题型:不定项选择

问题:

不定项选择
为了准确地测出平抛轨道上某点的坐标,需要注意的是 (   )

A.选距原点近一些的点

B.应正确标出平抛小球的球心在木板上的水平投影点

C.用重垂线准确地确定纵轴

D.选距原点远一些的点

考点:实验:研究平抛运动
题型:不定项选择

散热器供暖系统的整个供暖期运行中,能够实现运行节能的主要措施是哪一项

A.外网进行量调节
B.外网进行质调节
C.供暖系统的热计量装置
D.系统中设置平衡阀

题型:不定项选择

When someone says “well, I guess I’ll have to face the music”, it doesn’t mean that he is planning to go to hear a singer. It is something far less happy, as you are called in by your leader to explain why you did this and did that or why you did not do this or that.

At some time or another, every one of us has to “face the music”, especially as children. We can all remember father’s angry word “I wasn’t to talk to you”  and only because we did not listen to him. What a bad thing it was !

In the middle or at the end of every term, we students have to “face the music”. The result of the exam will decide whether we will face the music or not. If …that means parents’ cold faces and the contempt of the teachers and classmates.

“To face the music” is well known to every American, younger or old. It is at least 100 years old. It really means that you have to do something, no matter how terrible the whole thing might be, because you know you have no choice.

小题1:“To face the music” means “to ____________”

A.do something we don’t like to

B.go to the theater

C.go to the music show

D.do something that we want to小题2:If you didn’t listen to your father’s words, you would “face the music” ,or ____________.

A.do something to please him

B.do something to make him angry

C.be punished by him

D.be pleased with him小题3:Before the exam, we’ll have to “face the music”. That’s why ____________.

A.we like to take the exam

B.we are afraid of taking the exam

C.the exam is very important

D.we are afraid to pass the exam小题4:In the third paragraph. “If...” really means “If _______________”.

A.we got a “D” in the exam

B.we got an “A” in the exam

C.the exam is easy

D.the exam is difficult

题型:不定项选择

依靠()体身()而实现传热的过程称为热对流,简称对流。

题型:不定项选择

选择幼儿数学教育内容要注意符合哪些方面?

题型:不定项选择

男,41岁,发现右上颈包块2个月,病理活检为低分化鳞癌,原发灶最常位于()

A.上颌窦

B.鼻咽部

C.下咽部

D.扁桃体

E.喉

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