需要监测的系统性能指标包括______。 ①用户查询响应时间 ②系统吞吐量

How do people pass on messages? When you write a letter or make a telephone call, your words _ 1___ a message. People communicate with words. Do you think you can communicate _2__ words?  A smile __3_ your face shows you are happy and friendly. Tears in your eyes tell__4__ that you are sad. When you __5_ your hand in class, the teacher knows you want to say something __6___ ask questions. You shake your head, and people know you are saying no. You nod and people know you are saying ____ .7
Other things can also give some information. For example,  a sign at the bus stop helps you to know which bus __8___. A sign on the wall of your school helps you to find the library. Signs on doors tell you __ 9___ to go in or out. __10___ you ever noticed that there are a lot of signs around you and that you receive messages __11__ them all the time? People can communicate __12___ many other ways. A (An) 13__  can use his drawings to tell about beautiful mountains,  about the blue sea and many other things. Books __14___ to tell you about all wonderful things in the world and also about people and their ideas. Books,  magazines,  TV and radio and films all help us to communicate with other people. They all help us to know __15__ is going on in the world.

小题1:	A．take B．carry C．bring D．gives

小题2:	A．by B．with C．without D．use

小题3:	A．in B．on C．at D．of

小题4:	A．others B．the others C．other D．the other

小题5:	A．put on B．put down C．put up D．put out

小题6:	A．when B．or C．but D．if

小题7:	A．no B．hello C．yes D．nothing

小题8:	A．to get B．to take C．to have D．to bring

小题9:	A．which B．where C．how D．what

小题10:

A．Do B．Did C．Have D．Had

小题11:

A．from B．of C．about D．by

小题12:

A．with B．in C．without D．for

小题13:

A．writer B．artist C．science D．in

小题14:

A．write B．wrote C．are written D．is wrote

小题15:

A．what B．which C．that D．how