关于女型骨盆人口,下列哪项是正确的A.骨盆入口前后径长而横径短 B.骨盆入口横径较前

题型:单项选择题

问题:

关于女型骨盆人口,下列哪项是正确的

A.骨盆入口前后径长而横径短

B.骨盆入口横径较前后径稍长

C.骨盆入口呈纵椭圆形

D.骨盆入口呈三角形

E.骨盆人口呈圆形

考点:临床执业医师临床执业医师98
题型:单项选择题

某市2009年初拥有汽车40万量,每年年终将有当年汽车总量的5%报废,在第二年年初又将有一部分新车上牌,但为了保持该市空气质量,需要该市的汽车拥有量不超过60万量,故该市采取限制新上牌车辆数的措施进行控制,所以该市每年只有b万辆新上牌车.

(1)求第n年年初该市车辆总数an(2010年为第一年);

(2)当b=4时,试问该项措施能否有效?若有效,说明理由;若无效,请指出哪一年初开始无效.

(参考数据:lg2=0.30,lg3=0.48,lg19=1.28,lg21=1.32)

题型:单项选择题

問題2( )に入れるのに最もよいものを、1 2 3 4から一つ選びなさい。

コピー用紙の( )が減ったら、注文しておいてください。

A.キープ

B.チャージ

C.ストック

D.シェプ

题型:单项选择题

阅读理解。

     You've probably heard countless times how exercise is "good for you", but do you know that it can

actually help you feel good, too? Getting the right amount of exercise can speed up your energy levels

and even help you to feel better emotionally.

     However, like all good things, it's possible to overdo on exercise. Although exercising is a great way

to maintain a healthy weight, exercising too much to lose weight isn't healthy. The body needs enough

calories to function properly. Remember that you're still growing and will continue to do so throughout

your teen years. You'll need the energy to fuel the growth.

     Exercising too much in an effort to burn calories and lose weight can be a sign of an eating disorder.

If you have any doubts about how much you should be exercising, talk with a school nurse or family

doctor. And if you ever get the feeling that your exercise is in charge of you rather than the other way

around, talk with your doctor, a parent, or another adult you trust.

     Considering the benefits to the heart, muscles, and mind, it's easy to see why exercise is wise. If you

exercise now, keep it up as you become an adult (this is often the biggest exercise challenge for people

as they get busy with college and careers). One of the great things about exercise is that it's never too

late to start. And don't forget that even small things can count as exercise when you're starting out-like

taking a short bike ride or sweeping fallen leaves. Even walking your dog counts as part of your 60 minutes

a day of exercise (and your vet will tell you that animals need workouts just like humans do, so if your

family dog is fat, he'll benefit from your dedication, too).

1. Why should teens not exercise too much?

A. Because it causes their body to work disorderly.

B. Because it gets them to have an unhealthy weight.

C. Because it will make them become too thin.

D. Because it burns the energy they need to grow up.

2. The underlined part in Para.3 means that _____.

A. you are charged for your exercise

B. you manage how much exercise you need

C. you are greatly addicted to exercising

D. you do some exercise free of charge

3. What is the biggest challenge for people who want to exercise?

A. To find enough time to exercise.

B. To continue to exercise the whole life.

C. To own suitable equipment for exercising.

D. To find a person to exercise together.

4. The subject discussed in Paragraphs 2-3 is that _____.

A. it is not good for you to exercise too much

B. it is helpful to lose weight by exercise

C. it is a good thing to exercise every day

D. it is good for your pet to exercise every day

题型:单项选择题

今朝,应用较为广泛的资本组织方法重要有()。

A、文件方法。

B、数据库方法。

C、主题树方法。

D、超媒体方法。

题型:单项选择题

施封的货车,门扣未用铁线拧固,在途中站拧固后,确认施封有效,则()。

A.仍应换装整理

B.可继续运行

C.应编制记录方可继续运行

D.向发站电告

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