（）in the open air has given you a good color.

The experiment is carried cut to prove ______.

A. water pushes on your body when you swim underwater.

B. the earth is surrounded by a layer of air called the atmosphere.

C. the pressure of air around us has a powerful force.

D. the air pressure is not equalized around us.

Good morning, Sunshine Community Center ! May I help you?()

A. I'd like to book one air ticket.

B. I'm glad to introduce myself to you.

C. I need a plumber to repair the water pipe in my kitchen.

A. Giving good health

B. If give good health

C. Given good health

D. If he is good given health

A.Close the inlet and outletvalves for diesel oil

B.Open the air nozzles in the secondary combustion chamber until it stops

C.Open the air nozzles in the primary combustion chamber until it stops

D.Close inlet valve for pressurized air

A.facilities and every room is equipped

B.to be assistant manager

C.have reserved a double room

D.been

To be a good teacher, you need some of the gifts of a good actor; you must be able to hold the attention and interest of your students; you must be a clear speaker, with a good, strong, pleasing voice which is fully under you control; and you must be able to act what you are teaching, in order to make its meaning clear. Watch a good teacher, and you will see that he does not move motionless before his class; he stands the whole time he is teaching; he walks about, using his arms, hands and fingers to help him in his explanation, and his face to express his feeling. Listen to him, and you will hear the loudness, the quality and musical note of his voice always changing according to what he is talking about. The fact that a good teacher has some of the gifts of a good actor doesn't mean he will indeed be able to act well on the stage, for there are very important differences between the teacher's word and the actor's. The actor has to speak words which has been learnt by heart, he has

1、A good teacher ______.

A、knows how to hold the interest of his students

B、must have a good voice

C、knows how to act on the stage

D、stands or sits motionless while teaching

2、In what way is a teacher''s work different from an actor''s? ( )

A、The teacher must learn everything by heart.

B、He knows how to control his voice better than an actor.

C、he has to deal with unexpected situations.

D、 He has to use more facial expressions.

3、The main difference between students in class and theatre audience is that ( ).

A、students can move around in the classroom

B、students must keep silent while theatre audience

C、no memory work is needed for the students

D、the students must take part in their teachers' plays

A、Work

B、Worked

C、Working

D、To be working

A.has complained

B.have complained

C.complain

D.complaining

A.

B.

C.

D.

Certkiller .com has a server named Certkiller -SR05 that has numerous processors installed.You have been given the task of developing an application that displays certain clock speed statisticson all processors installed on Certkiller -SR05.You need to ensure that this requirement is fully satisfied.What should you do?（）

A.

B.

C.

D.