如果输入信号是一个失真的正弦波，加入负反馈后能否减小失真？

What does the man think about the hotel？

A．It"s not very bad for its price.

B．It"s pretty good for its food.

C．It"s very bad for its poor service.

D．It"s the worst one he has ever known.

Which statement is NOT true about Virgin Blue？

A．It has now expanded its business into shipping.

B．It has employees ten times as many as they did at the beginning,

C．It has some rivals.

D．It is now doing pretty good.

retty tight schedule this afternoon.

A．I think it is

B．I don"t think so

C．I"m afraid not

D．I"d love to

A、a pretty white cotton

B、a white pretty cotton

C、a pretty cotton white

D、a cotton pretty white

A．The PC era followed pretty much the same pattern

B．This is not a proven formula for all manner of grand adventures and misadventures

C．The history of the computer business is that its market leaders are both fabulously rich and highly ambitious

D．Perhaps one of the reasons IBM was tempted to look upwards was because, while it had vast amounts of cash, it faced serious legal constraints in many of its core markets

_______ from the start Oh my pretty pretty boy I want you Like I never ever loved no one before you pretty pretty boy of mine （8）_______ tell me you love me too Oh my pretty pretty boy I（9）________ you Oh my pretty pretty boy I do Let me inside Make me stay right（10）________ you

______, we decided to leave at once, as we didn't want to risk missing the bus.

A．As it being pretty late

B．It being pretty late

C．It was being pretty late

D．Being pretty late