一个计算机网络协议主要由 【5】 、语义和时序3个基本要素组成。
参考答案:语法
解析: 一个计算机网络协议主要由语法、语义和时序组成。
This is Mike’s bedroom. You can see a desk and a bed in the room. On the desk, there is a backpack and three books. One is a Chinese book, the other two are English books. There is a clock on the desk, too. You can see a baseball under the desk. On the bed there is a box. Can you guess what’s in the box? Ah, it’s a new computer game. It’s the present(礼物) for Mike’s seventh birthday.
小题1:Whose room is this?
A.May’s.
B.Mike’s.
C.Simon’s
D.Mark’s小题2:How many Chinese books are there on the desk?
A.One.
B.Two.
C.Three.
D.Four.小题3:What’s that under the desk?
A.A clock.
B.A bed.
C.A baseball.
D.A notebook.小题4:What can’t you see on the desk?
A.A book.
B.A backpack.
C.A computer.
D.A clock.小题5:How old is Mike?
A.4.
B.5.
C.6.
D.7.
Modern equipment and no smoking are two of the things I like ______ working here. But whether to stay or leave is ___________.
A.with; on you
B.about; up to you
C.at; up to you
D.over; beyond you