单项选择题
1、 　　My color television has given me nothing but a headache. I was able to buy it a little over a year ago because I had my relatives give me money for my birthday instead of a lot of clothes that wouldn’t fit. I let a salesclerk fool me into buying a discontinued model. I realized this a day late, when I saw newspaper advertisements for the set at seventy-five dollars less than I had paid. The set worked so beautifully when I first got it home that I would keep it on until stations signed off for the night. Fortunately, I didn’t got any channels showing all-night movies or I would never have gotten to bed.
　　Then I started developing a problem with the set that involved static (静电) noise. For some reason, when certain shows switched into a commercial, a loud noise would sound for a few seconds. Gradually, this noise began to appear during a show, and to get rid of it, I had to change to another channel and then change it back. Sometimes this technique would not work, and I had to pick up the set and shake it to remove the sound. I actually began to build up my arm muscles(肌肉) shaking my set.
　　When neither of these methods removed the static noise, I would sit helplessly and wait for the noise to go away. At last I ended up hitting the set with my fist, and it stopped working altogether. My trip to the repair shop cost me $62, and the set is working well now, but I keep expecting more trouble.
Why did the author say he was fooled into buying the TV set?
A．He got an older model than he had expected.
B．He couldn’t return it when it was broken.
C．He could have bought it at a lower price.
D．He failed to find any movie shows on it.


2、（     ）
A．{1}   
B．{1，2}   
C．{4}
D．{1，2，4}


3、 （     ）
A．甲是乙的充分但不必要条件
B．甲是乙的必要但不充分条件
C．甲是乙的充要条件
D．甲不是乙的充分条件也不是乙的必要条件


4、
下列句子有语病的一项是（　　）
A．由于在交通路口设置了“非机动车禁驶区”，机动车就可以免受非机动车干扰，从而加快行驶速度。
B．国际社会普遍认为，海洋资源的开发利用将成为人类走出人1：3剧增、资源枯竭、环境恶化困境的重要选择。
C．如果美术工作者看不到儿童自身发展的主动性，过早地让他们接受专业绘画知识，那么就会变成束缚儿童发展的枷锁。
D．为能够吸引更多的高科技人才进驻本市高科技园区企业，市政府相关部门将为此类人才提供专门的资金支持政策。


5、



6、 某小组共10名学生，其中女生3名，现选举2人当代表，至少有1名女生当选，则不同的选法共有
A．21种
B．24种
C．27种
D．63种


7、 用1，2，3，4这四个数字可以组成没有重复数字的三位数的个数是
A．4个
B．24个
C．64个
D．81个


8、 It was not until she had arrived home __________ she remembered her appointment with the doctor.
A．when
B．that
C．and
D．as


填空题
9、 在对某种零件的直径检测时，抽取了10个样品，测得结果如下：0．80，0．79，0．81，0．81，0．80，0．79，0．78，0．82，0．80，0．81(单位：mm)．这次检测样本的平均数为 mm，样本方差为 mm2．


简答题
10、

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