【C8】A．flowB．vesselC．pressureD．function

【C7】

A．other

B．second

C．two

D．one

【C6】

A．exhibited

B．showed

C．illustrated

D．displayed

【C5】

A．base

B．based

C．basis

D．basic

【C4】

A．but

B．otherwise

C．nevertheless

D．still

【C3】

A．influence

B．interrupt

C．effect

D．affect

【C2】

A．presenting

B．to present

C．presented

D．presents

efficiently. Depression,【C1】______the other hand,can raise the risk of dying from heart failure,a separate study found. The two studies,【C2】______at a meeting of the American College of Cardiology in Florida, show how psychological factors can【C3】______a persons health. " We dont recommend that you laugh and not exercise,【C4】______we do recommend that you try to laugh on regular basis. Thirty minutes of exercise three times a week and fifteen minutes of laugher on a daily【C5】______is probably good for the vascular(脉管)system,"said Doctor Michael Miller. Miller and his colleagues at the school【C6】______ two movies, one humorous,【C7】______stressful, to twenty healthy volunteers and tested the function of their blood vessels. The researchers specifically looked at the lining of the vessels and found that blood【C8】______ was reduced in fourteen of the twenty volunteers after stressful movie cuttings. But blood flowed more freely in nineteen of the twenty volunteers【C9】______ they laugh at fun movie segments. Average blood flow increased 22% during laughter,and【C10】______ 35% during mental stress,the researchers told the meeting.

【C1】

A．at

B．on

C．in

D．by

Mr. Green said his clients______our samples by the end of last month.

A．didn"t receive

B．hadn"t received

C．haven"t received

D．don"t receive

l handle.

A．different

B．diverse

C．variable

D．various

I decided to go to the party as soon as I______.

A．would finish what I was doing

B．finish what I did

C．finished what I did

D．finished what I was doing