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问题 填空题

算法的复杂度主要包括时间复杂度和______复杂度。

答案

参考答案：空间

解析： 衡量一个算法的复杂度有两个指标：时间复杂度和空间复杂度。前者用来衡量执行算法时所需要的计算工作量，而后者用来衡量执行算法所需要的存储空间。

单项选择题

胸导管的说法，何者错误

A．收集下半身和左上半身的淋巴

B．起自乳糜池

C．穿膈的食管裂孔上行

D．汇人左静脉角

E．乳糜池位于第11胸椎与第2腰椎之间
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单项选择题

Are you going to high school to go on with your study What will you do if you can’t Don’t worry. Vocational schools are open for you because our country is in need of people with special skills.

Compared with common high schools, vocational schools have more advantages. Firstly, in order to promote the development of vocational education, our country spends a lot of money on it. So you need to pay only a smaller half of the school fee. Secondly, in here you have already started learning practical skills that you can use all your life. But some other students may still worry about how to spend the long three years at high schools. Why Because they didn’t choose the school that suits them. And finally, when they are still wondering where to go, you are already able to live on your own hands proudly. And perhaps it won’t be long before you are on the road to success.

People take different roads because they have different potentials. So different students should choose different schools. Go to high school if you think that you can go farther on that road. Choose a key high school if you are lucky enough to have the chance. Enter a vocational school if you are interested in the lessons there and you are better at making things with your hands.

In a word, think carefully and see what kind of person you are. Remember, always choose things that suit you.

The underlined word "practical" here means "（）".

A．fair

B．useful

C．poor

D．safe
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