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【单选题】
听力原文：M: Hi, I have some good news for you. W: What is it? M: The teacher suggests that we go on a trip this Sunday. W: Oh, wonderful. Where shall we go? M: How about going to the zoo? W: I don't think it's a good place. We should go farther this time. M: Where do you think we should go then? W: How about the park in the suburb? M: We've been there last year. Why not go to the mountains instead7 W: That sounds interesting. M: Then we shall climb the mountains there. 8．What's the probable relationship between the two speakers? 9.Why do they not go to the park? 10.Which of the following is not mentioned by the two speakers? (8)A.
Teacher and student.
B.
Classmates.
C.
Father and daughter.
D.
Mother and son.
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【单选题】已知全集U={1，2，3，4，5，6，7，8}，A={1，4，6}，B={4，5，7}，则（C U A）∩（C U B）等于（ ）
A.
{2，3，4，8}
B.
{2，3，8}
C.
{2，4，8}
D.
{3，4，8}
【简答题】用3个5和3个0组成一个六位数：只读一个零的六位数是______，读出两个零的六位数是______，组成最小的六位数是______．
【简答题】The creditors can protect their identity in the following ways except
【简答题】用2、5、0、9、7、8六个数字，组成最大的六位数是______，最小的六位数是______．
【简答题】用4，6，8，5，9，0这六个数字组成最小的六位数是______，组成最大的六位数是______．
【简答题】用三个0、二个1、一个9写出数最大的六位数是______，最小的六位数是______．
【简答题】最大的五位数是（ ），最小的六位数是（ ），它们的差是（ ），它们的和是（ ）。
【单选题】In CA6140 ,（ ） can automatically disconnect the motion to protect the machine tool in case of overload or accident .
A.
Interlock mechanism
B.
safety clutch
C.
over-run clutch
D.
friction clutch
【单选题】设全集U={1，2，3，4，5，6，7，8}，集合A={1，2，3，5}，B={2，4，6}，则（C u A）∩B=（ ）
A.
{2}
B.
{4，6}
C.
{l，3，5}
D.
{4，6，7，8}
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