The doctor performed an operation on him as soon as he was sent to the hospital.

The surgeon is performing a delicate operation.（英译中)

（Since) the injury （is bad), the doctors （will operate) him （immediately).A．SinceB．is badC

How does the medical profession regard the bypass operation？A．Many doctors believe it to b

Under what conditions should the bypass operation be performed？A．When a general practition

The writer implies that ______.A．difficult operation can be successfully performed all ove

● （71） controls the operation of the computer and performs it′s dataprocessing functions.