肌纤维收缩的主要结构基础是（）。A.横小管 B.肌浆网 C.线粒体 D.粗、细肌丝

下列工具中为需求分析常用工具的是( )。

A．PAD

B．PFD

C．N-S

D．DFD

[听力原文] 女：我们工厂这次招聘，想给残疾人一些工作机会。 男：太好了!不过他们在工作中可能需要特殊的照顾。 女：我们已经考虑到了，会增加各种设施来方便他们的。 男：我代表残疾人互助组织向你们表示感谢! 问：关于女的，可以知道什么？（）

A．身体上有残疾 

B．需要男的帮助 

C．想帮助残疾人 

D．工作非常特殊

What is "Walk to School"
Now we are working on a programme of "Walk to School". We would like as many parents and children as possible to take part, even if in a small way. Children who walk to and from school along with their parents can learn essential road safety and life skills.
You can take part by...
■ Walking to and from school with your child every day.
■ Walking for one or two days during the week.
■ Encouraging others to walk, if you already do.
Walking is great!
■ Walking is great exercise! A walk is good for your body and can keep you fit.
■ You won’t have to waste time looking for a parking site.
■ It’s free. You’ll save money by not using the car.
■ It’s pollution-free.
■ It’s a good chance to talk to your children and to meet other parents, too.
Enjoying walking to school!
Here are some suggestions to help you and yore" child enjoy walking to school.
■ Plan a safe route together.
■ Teach children what a kerb is and what it means.
■ Encourage your child to help you choose the safest places to cross the road.
■ Look at and discuss the things you see on your way—especially road signs and what they mean.
Walk to school! Thousands of parents and children already take part, could you
Please go to www. walktoschool, org. uk for more information.

What is the first thing to do if you want to enjoy your walking to school

A. Plan a safe route with your children.
B. Learn what a kerb is and its meaning.
C. Choose the safest places to cross the road.
D. Find road signs and know their meanings.

简述射孔测试联作的原理？

宫颈脱出 * * 口，宫体仍在 * * 内（）

A.子宫脱垂Ⅰ度轻型

B.子宫脱垂Ⅰ度重型

C.子宫脱垂Ⅱ度轻型

D.子宫脱垂Ⅱ度重型

E.子宫脱垂Ⅲ度