山,成为巴渝地貌的主体,约占总面积的()。

题型:填空题

问题:

山,成为巴渝地貌的主体,约占总面积的()。

考点:地域文化巴渝文化巴渝文化题库
题型:填空题

从精子和卵子结合到小儿出生称为()

A.胎儿期

B.婴儿期

C.幼儿期

D.学龄前期

E.学龄期

题型:填空题

下列哪一项不是大肠埃希菌不耐热肠毒素的特性()

A.对热不稳定

B.由两个亚单位组成

C.抗原性与霍乱弧菌肠毒素相似

D.对热稳定

E.激活腺苷酸环化酶

题型:填空题

阅读理解。

    While I was in 9th grade, I built a circuit for the traffic system of our city. After getting the first prize, I

got this valuable advice from my father, "Do whatever interests you, and don't let the work challenge you,

make sure you are challenging that work."

    I have always preferred the projects which are challenging and related to real life problems. I clearly

remember building a shipping program several years ago. I divided the whole project into several small

sections. When I understood it clearly, used my brainstorming skill on it, and gave some basic ideas. Then

I asked my professor for help before jumping into coding. At first, I did not know how to ask questions

correctly and always asked the question "How do I do it?" As I kept working and discussed with my professor,

I became more comfortable and those"How" questions soon turned into "What if I do this and that" types o

f questions.

    It took me four days to write the code. The desire to solve the problem kept me sleepless all nights

brainstorming in even greater details. Every time I saw my program running smoothly, I exploded with joy.

I still remember the last day of my work. I was getting some problem and didn't know what to do. At that

moment, a man came in to clean. He has headphones, and he was dancing while cleaning the room. Seeing

this, I burst out laughing. That moment calmed me. I regained energy and interest and started to work again,

and soon I fixed the problem.

    My success in the project proved that breaking up a large problem into small parts could help find a

possible solution. Discussing the problem with others was also very beneficial. Now I have gained the

confidence to attempt any kind of project.

1. According to the passage, the writer was interested in _____. [ ]

A. developing traffic systems

B. doing challenging projects

C. winning great prizes

D. writing different codes

2. The writer asked the question "How do I do it" at first because _____.[ ]

A. he had no clear idea about his program

B. he was too shy to express himself

C. he wanted to he understood easily

D. he preferred this kind of question

3. We learn from the passage that the writer's shipping program _____.[ ]

A. would benefit people a lot

B. was done together with others

C. was difficult and needed patience

D. cost much money and energy

4. What would be the best title of the passage? [ ]

A. Do It Yourself

B. No Pains, No Gains

C. Learning with interest

D. Practice Makes Perfect

题型:填空题

对于看涨期权,利率提高将使其价格下降。 ( )

题型:填空题

发电机在运行中,定子绕组、定子铁芯及转子绕组将产生(),这些损耗将造成发电机的某些部件(),温度升高。

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