通过某种图形形式确定和形象体现项目组织内务组织单元或个人之间的相互工作关系的管理工具

阅读理解。

     Big Ben is not the name of a man. It is the name of a huge clock in London. London is the capital of

England. This clock has four faces. So, no matter where you stand, you can read the time on the face of

Big Ben. Each face is about the size of a double-decker (双层) bus. The hands are about four meters

long. It is about the size of two people standing on top of each other. If you go to London, you may want

to visit the Houses of Parliament (议会大厦). In that place, you will find Big Ben sits at the top of the

clock tower. In the Houses of Parliament, you will probably hear it as well as see it. The giant clock makes

such a loud noise, ding dong, ding dong. It sounds every quarter of an hour.

     The clock was named after a big man. He was Sir Benjamin Hall. This man did much building work in

London many years ago.

1. Big Ben is _____.

A. a double-decker bus

B. a huge clock

C. the short for Benjiamin

D. a building

2. The clock strikes every _____.

A. ten minutes

B. fifteen minutes

C. thirty minutes

D. forty-five minutes

3. Which two words mean the same as large?

A. Big and double.

B. Huge and loud.

C. Giant and huge.

D. Giant and small.

4. You can tell the time of Big Ben _____.

A. at the top of the clock tower

B. in the Houses of Parliament

C. by the huge clock hands

D. on the four faces of the clock

5. The title of this passage is _____.

A. Big Ben

B. A clock

C. Sir Benjamin Hall

D. The Capital of England

压路机的碾轧方向应从填土区的两侧逐渐往（）开行，平均行速控制在约公里（）/小时。

属于近部选穴的是( )

A．面瘫局部选颊车、地仓
B．胃痛选足阳明胃经的足三里
C．胃火牙痛选内庭、二间
D．哮喘选定喘穴
E．肝阳化风导致的抽风选太冲、行间

将一个20Ω的定值电阻R₁与另一个定值电阻R₂并联后，得到l2Ω的等效电阻，则R₂的阻值为______Ω；若再增加一个50Ω的电阻R₃与R₁和R₂串联，则串联后的总电阻为______Ω．

子实体