垂直型分工

发布时间：2018-02-27 13:14 │ 来源：www.tikuol.com

题型：名词解释

问题：

垂直型分工

题型：名词解释

Single-use Things
Hotel customers in Changsha, capital of Hunan Province, will no longer get free things like toothbrushes. The local government has decided that hotels should put a price on these single-use things. It will begin on
July 1. Youth.cn has reported.

                                                        New Ways to Protect Eyes
     Many students in China are doing the new eye exercises. Do they like the new changes? Here are two
opinions of students in Beijing.
     LiHua, 14, Beijing Sanfan Middle School:" I like the new background music better. It is more relaxing
than the old one."
     LuWenqi, 12, Beijing Xicheng Foreign Language School:" The new exercises are healthier. The part of
rubbing (摩擦) the ground with our feet is funny. We all laugh while doing it."

                                       Popular Ways to Say Goodbye to Middle School Life
    In addition to a big meal, there are also some new popular ways to say goodbye before graduation.
    ▲Travel with your classmates.
    ▲Set up a website to help your group keep in touch.
    ▲Record everyone's best wishes and their smiles with a DV and make a DVD copy for everybody.
    ▲Clean the class room for one last time.

1.When will Changsha hotels put a price sign on the single-use things?

[ ]

A.On May 1.
B. On June 1.
C.On July 1.
D.On August 1.

2.Which is the way to keep in touch with classmates in Piece 3?

[ ]

A.To go travelling.
B.To make a DVD.
C.To clean the classroom.
D.To set up a website.

3.How many ways are talked about in Piece 3?

[ ]

A.Three.
B.Four.
C.Five.
D.Six.

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题型：名词解释

解放后，由于中西医共同努力，妇产科取得成绩有（）

A.针灸纠正胎位

B.中药引产

C.中医中药治疗子宫颈癌

D.中西医结合非手术治疗宫外孕

E.编著《医林改错》

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某研究小组的同学根据所学的光学知识，设计了一个测量液体折射率的仪器。如图所示，在一个圆盘上，过其圆心O做两条互相垂直的直径BC、EF。在半径OA上，垂直盘面插上两枚大头针P₁、P₂并保持P₁、P₂位置不变，每次测量时让圆盘的下半部分竖直进入液体中，而且总使夜面与直径BC相平，EF作为界面的法线，而后在图中右上方区域观察P₁、P₂的像，并在圆周上插上大头针P₃，使P₃正好挡住P₁、P₂的像。同学们通过计算，预先在圆周EC部分刻好了折射率的值，这样只要根据P3所插的位置，就可以直接读出液体折射率的值。

（1）大头针P3插在M位置时液体的折射率值_______________插在N位置时液体的折射率值。

（2）若∠AOF=30°，OP₃与OC的夹角为30°，则液体的折射率为______________。

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题型：名词解释

任何直接操作的阀门手轮边缘，其周围至少应保持有（）的净空距离。

A.50mm

B.100mm

C.150mm

D.250mm

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题型：名词解释

属于内固定的是

A．钢板固定

B．螺钉固定

C．石膏固定

D．小夹板固定

E．髓内针固定

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