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【单选题】
双绞线可分为屏蔽双绞线（STP）和（）两类。A.
五类双绞线
B.
六类双绞线
C.
非屏蔽双绞线（UTP）
D.
非绝缘体
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举一反三
【单选题】听力原文：A: Come in Sharon and take a seat. B: Thanks. A: So, where do we start? Should we begin with a look at last year and then go on from there? B: Fine A: So, how do you feel you've done in your firs...
A.
it is diffcult for her to know the program well.
B.
it regularly stops working.
C.
the monitor is too small.
【单选题】听力原文：M: Come in Sharon and take a seat. So, where shall we start? Should we begin with a look at last year? W: Fine. M: How do you feel about your work in your first full year in the company? W: Well,...
A.
Some time last year.
B.
One year ago.
C.
Over a year ago.
D.
Half a year ago.
【单选题】听力原文：A: Come in Sharon and take a seat. B: Thanks. A: So, where do we start? Should we begin with a look at last year and then go on from there? B: Fine A: So, how do you feel you've done in your firs...
A.
it is difficult for her to know the program well.
B.
it regularly stops working.
C.
the monitor is too small.
【单选题】11-2.在分时系统中,为使多个用户能够同时与系统交互,最关键的问题是(能在一较短的时间内,使所有用户程序都得到运行);当用户数目为100时,为保证响应时间不超过2秒,此时的时间片最大应为( B )。
A.
（1）10ms
B.
（2）20ms
C.
（3）50ms
D.
（4）100ms
【判断题】根据爱因斯坦的讲话,在牛顿时代领头的学科是天文学,物理学是随着天文学的发展而发展的。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
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