题目内容

To cream a circuit, a conducting wire is attached to an electric cell at one end, and to an electric outlet at the other.

A. battery
B. faucet
C. socket
D. appliance

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数据流图是常用的进行软件需求分析的工具，其基本组成包括（）。

A. 输入、输出、外部实体和加工
B. 变换、加工、数据流和存储
C. 加工、数据流、数据存储和外部实体
D. 变换、数据存储、加工和数据流

5英寸软盘的存储容量和每个扇区存储的固定数据是（）。

A. 1.44MB，512B
B. 1MB，1024B
C. 2MB，256B
D. 1.44MB，512KB

Complacency towards ecological balance ("It can't happen here!") has resulted in a number of ______.

A. damages
B. wastes
C. catastrophes
D. dangers

The obstacles Nancy Kerrigan faced as she strove (to win) the Olympic ice skating medal at Likehamma in 1944 form (the kind of) story (about whom) a fascinating novel (might) be written.

A. to win
B. the kind of
C. about whom
D. might