What do you know about Jack and Betty?
A. They’ve been laid off for several months.
B. They were surprised when they were laid off by their companies.
C. They’re not ready for tough jobs.
D. They have no skills or training.
查看答案
What can you infer about Jack and Betty from the passage?
A. They don’t have any children.
B. They didn’t have to commute far when working in their original companies.
C. They are going to take computer courses.
D. It’s impossible for them to find jobs that they will be happy with.
申请书由下列（ ）几部分组成。
A. 标题
B. 称呼
C. 正文
D. 署名及日期
Thecombinationpattern is also called the _________ pattern
指明接口所用接线器的形状尺寸、引脚数目和排列方式，接口机械固定方式等属于物理层哪个特性？
A. 机械特性
B. 电气特性
C. 功能特性
D. 规程特性
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