May I leave a message fo rhim的中文意思是（）。A、我有一个包裹先放在这里B、没有我想看的电视节目C、我可以给他留言吗D、我可以免费打长途电话吗

I can’t leave. She told me that I____________ stay here until she comes back.

A. can B. must C. will D. may

“ May I speak to Mr.Charlson?”

“Sorry, Mr.Charlson is at a meeting.Would you like to ( )?”

A.leave a message

B.have a message

C.leave information

D.have information

I'm sorry she's not in. Would you like to ( )a message?

A. keep

B. rest

C. leave

A.主机应发送报文leave group message的组地址是224.0.0.1;

B.主机应发送报文leave group message的组地址是224.0.0.2;

C.主机应发送报文leave group message的组地址是224.0.0.13;

D.主机应发送报文leave group message的组地址是239.0.0.1。

In information theory, "information" is regarded as knowledge which reduces or removes(71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a(72) character or word in a given message or in a given position of a message.In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a(73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink,(74) In information theory(75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source.

A．uncertainty

B．unreliability

C．randomness

D．inconsistency

—Could I leave a message?

— ________ .

A.Please speak

B.Say your message

C.Sure. Go ahead, please

D.Do what you like

Do you want to have a message? —No, thanks. I( ) in half an hour.

A. will call again

B. can call

C. may phone him

D. would call

Stranger: I wonder if you could spare me a few minutes of your time?

Woman: ______

A、May I take a message?

B、I don't know if I can.

C、What have you decided?

D、You may have it longer if you like.

A.Join group message;

B.Leave group message;

C.General query message;

D.Group-Specific query message;

E.Membership report message。