问题 单项选择题

所有持有当代商厦购物优惠卡的顾客,同时持有双安商厦的购物优惠卡。今年国庆,当代商厦和双安商厦同时给持有本商厦的购物优惠卡的顾客的半数,赠送了价值100元的购物奖券。结果,上述同时持有两个商厦的购物优惠的顾客,都收到了这样的购物奖券。
如果上述断定是真的,则以下哪项断定也一定为真
Ⅰ.所有持有双安商厦的购物优惠卡的顾客,也同时持有当代商厦的购物优惠卡。
Ⅱ.今年国庆,没有一个持有上述购物优惠卡的顾客分别收到两个商厦的购物奖券。
Ⅱ.持有双安商厦的购物优惠卡的顾客中,至多有一半收到当代商厦的购物奖券。

A.只有Ⅰ。
B.只有Ⅱ。
C.只有Ⅲ。
D.只有Ⅰ和Ⅱ。
E.Ⅰ、Ⅱ和Ⅲ。

答案

参考答案:C

解析:当“所有持有双安商厦的购物优惠卡的顾客,也同时持有当代商厦的购物优惠卡”时,持有双安商厦的购物优惠卡的顾客才会有一半收到当代商厦的购物奖券,这是最多的情况,所以命题Ⅲ真,而另外两个命题都不必然为真。

阅读理解

It’s great fun to explore new places—it feels like an adventure, even when you know you’re not the first to have been there. But make sure not to get lost or waste time going round in circles.

·Do the map reading if you’re being driven somewhere. It’ll be easier if you keep turning the map so it follows the direction you’re traveling in. Keep looking ahead so that you can give the driver lots of warning before having to make a turn, or you’ll have to move to the back seat.

·Get a group of friends together and go exploring. You’ll need a good map, a compass(指南针), a raincoat, a cellphone to call for help in case you get lost, and a bit of spare cash for emergencies. Tell someone where you’re going before you set out and let them know what time you expect to be back. The test is not in getting lost, not in seeing how fast you can go, so always stick together, waiting for slower friends to catch up.

See if your school or a club organizes orienteering(越野识途比赛) activities, in which you need a map and a compass to find your way. This can be done as a sport, with teams trying to find the way from A to B (and B to C, etc) in the fastest time, or simply as a spare-time activity. Either way, it’s not only good fun, but a great way to keep fit.

小题1: Sitting beside the driver, you should _______.

A.direct the driver when necessary

B.look ahead to see where there’s a turn

C.move to the back seat if feeling uncomfortable

D.Keep looking at the map to find a place to go to小题2: Why do you need to tell someone your exploration plan before setting out?

A.To get information when in danger.

B.To be saved in case of an accident.

C.To share the fun with him/her in exploration.

D.To tell him/her what’s going on with the group members.小题3: Orienteering activities can _______.

A.make people work fast

B.help people stay healthy

C.help people organize other activities

D.make people get prepared for sports.小题4: The text mainly talks about _____.

A.the fun of exploration

B.what to bring for exploration

C.the way to use a map in exploration

D.how to prevent getting lost in exploration.

问答题 简答题