在“探究小车速度随时间的变化规律”实验中,小车拖纸带运动,打点计时器在纸带上打出

题型:实验题

问题:

在“探究小车速度随时间的变化规律”实验中,小车拖纸带运动,打点计时器在纸带上打出一系列点,从中确定四个计数点,每相邻两个计数点间的时间间隔是0.1s,用米尺测量出的数据如图所示,则小车在C点的速度vC =  ▲    m/s。由纸带的信息可得出小车的运动是   ▲     (填“加速运动”、“ 匀速运动”或“减速运动”)。

考点:实验:探究弹力与弹簧伸长的关系实验:探究小车速度随时间变化的规律实验:探究加速度与力、质量的关系实验:探究功与速度变化的关系
题型:实验题

在体外放射分析中,不能作为特异性结合剂的物质是()。

A.抗体

B.受体蛋白

C.聚乙二醇(PEG)

D.酶蛋白

E.以上都不是

题型:实验题

   Arguing with your parents is totally natural for teens. From your hairstyle to your friends, to your marks at school, to your television habits, to your future plans, it might just seem like you argue with your parents about everything. While this is not generally a pleasant state of affairs, it is normal and it will most likely pass.

Argue fairly

Arguments between teens and parents generally come about when both parties believe that they know what is best for the teen. Parents have been caring for their teens for over a decade, but teens are quickly becoming adults and believe that they are able to take care of themselves. If you must agree with them, argue fairly by: Allowing each person to speak their mind. Refusing to interrupt others when they are speaking. Sticking only to the topic at hand.

Argue respectfully

No matter how heated things may get during an argument, try to remember that your parents still are worthy of your attention, respect and love. During arguments, be respectful by: Keeping your voice lowered at all times and refusing to shout. Sitting still and staying calm. Refusing to engage in angry actions such as kicking, throwing or hitting anything. Reasonably explaining the reasons for your opinions.

_________

There is a thin line between having a discussion and engaging in an argument, but smart teens know that keeping their interactions with their parents at the discussion level practically guarantees that they will be taken more seriously. No one likes to argue, and the parents of teens can be especially weary of it, so keeping things at the discussion level will work to everyone's advantage.

Arguing with parents is practically a sign of the teenaged years, but out-of-control arguments don't serve anyone well. Before arguing with your parents, decide what type of teen you want to be and what compromises (妥协)you are willing to make in order to achieve your goals. You never know, you might just avoid an argument all together.

60.This passage mainly tells teens______.

A. arguments don't solve any problem

B. arguing with parents may hurt them

C. some tips on arguing with parents

D. how to avoid arguing with parents

61. When arguing with your parents, you should______.

A. make up your mind not to give in

B. show your respect for them

C. express your opinions through actions

D. make full preparations for it

62. Which of the following is proper for the blank in the passage?

A. Take discussion seriously                  B. Argue seriously

C. To be smart teens                     D. Argue only when needed

63. The underlined phrase "be weary of "in the passage probably means_  ___.

A. be proud of   .                      B. be interested in

C. be tired of                      D. be satisfied of

64.It seems that the author thinks teens' arguing with parents is_______

A. normal        B. practical         C. shameful          D. impolite

题型:实验题

已知四个码组位110001011、100010111、000101111和001011110,该码的最小码距为(),可纠正()位错。

题型:实验题

下列账户属于资产备抵账户的是( )。

A.应收账款
B.其他应交款
C.累计折旧
D.应付职工薪酬

题型:实验题

神经调控手术的优势在于()

A.手术风险低

B.微创

C.可调控

D.可逆

E.并发症少

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