题目内容

所谓“变号操作”是指将一个整数变成绝对值相同但符号相反的另一个整数。若整数用补码表示,则二进制整数01101101经过变号操作后的结果为_______。

A. 10010
B. 1.001e+007
C. 1.001e+007
D. 1.11011e+007

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If you______your name and address on the card, we' 11 send the book to you as soon as it is returned.

A. go over
B. fill in
C. find out
D. carry out

______ of danger, he jumped into the river all at once.

A. Because
B. In terms
C. Instead
D. Regardless

用于扩展人的神经网络系统和记忆器官的功能,消除信息交流的空间障碍和时间障碍的信息技术是______。

A. 感测与识别技术
B. 控制与显示技术
C. 计算处理技术
D. 通信与存储技术

The first name for the Open University was " The University of the【36】". The idea was to teach " on the air" , in other【37】, on radio and television. Most of the teaching is done like this. Radio and television【38】brought the classroom into people's【39】. But this, on its own, is not【40】for a university education. The Open University【41】also receives advice at one of 283 study centers in the country. Thirty-six weeks of the year he has to send【42】work to a " tutor" , the person who guides his【43】. He must also spend three weeks every summer【44】a full-time student. The tutors and students meet and study together, as in other universities. At the end of the Open University's first year, the results were good. Three out of every four students【45】their examinations. If they do this every year, they will finish their studies in four or five years.
(36)

Air
B. Radio
C. Television
D. Open

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