系统从不同的角度可分为：即时系统与（）系统；集总参数系统与（）系统。
Which of the following is the correct pronunciation for 99.06%?
A. Nine nine zero six percent.
B. Nine nine point zero six percent.
C. Ninety-nine point six percent.
D. Ninety-nine point zero six percent.
What does “life expectancy” mean?
A. 预期
B. 时长
C. 寿命
D. 生活
What are the three steps to offer supporting details?
A. Identify the topic.
B. Identify what you are going to say about the topic.
C. Identify details that support or explain the main idea.
D. All of the above.
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