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【单选题】
听力原文：W: You've got a new camera. It looks good and must be very expensive. M: It is good. But I got it for next to nothing. Q: What does the man mean about his camera? (19)A.
He got the camera at a very low price.
B.
The camera is very expensive.
C.
The camera is worth nothing.
D.
He does not like the camera.
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【单选题】每一个以太网卡都拥有全球唯一的MAC地址,为网络上的计算机提供了一个有效的识别标识,它是一个以太网长度为48位的( )
A.
二进制数
B.
八进制数
C.
十进制数
D.
十六进制数
【单选题】— Shall we go and visit Mr. Wang tomorrow? — _____. [ ]
A.
It depends
B.
That depends on
C.
It is depended
D.
That depends so
【单选题】Whether the will be played ___ the weather.
A.
according to
B.
depends by
C.
depends on
D.
relies with
【简答题】设全集U={a，b，c，d}，集合A={a，b}，B={b，c，d}，则（? U A）∪（? U B）=（ ）。
【单选题】设全集 U={a,b,c,d},集合A={a,c},B={b,c}, 则C U B∪A为 ( )
A.
{a,c,d}
B.
{a，b，d}
C.
{a，b，c}
D.
{b，c，d}
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