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【单选题】
MCS-96单片机有不同的数据类型，其中（）是无符号的16位变量，其取值范围是0～255。A.
字节型BYTE
B.
字型WORD
C.
双字型DOUBLE_WORD
D.
短整型SHORT_INTEGER
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举一反三
【简答题】计算:7542-2542=______________________________; 你采用什么方式简便运算? 答:_________________________________________________.
【简答题】计算: = ;你采用什么方式简便运算? 答: .
【单选题】Which of the following statements represents the FIRST precaution to be taken prior to working on any installed electrical component _____.
A.
Wear rubber gloves and boots
B.
Use only approved non-conducting tools
C.
Ground the case of the machine before beginning any repairs
D.
Open the supply circuits and tag the switches
【单选题】Which of the following is implied in the first paragraph?
A.
People used to be forced to work under whips.
B.
The author dislikes the function of politics in economy.
C.
Incentives are always less available than regulations.
D.
People have an instinct of working less and getting more.
【简答题】根据下面给出的系统Petri网模型,(1)写出该系统的输入、输出矩阵及关联矩阵;(2)写出系统初始状态标识,判断t1是否能够激发,若能激发,则写出激发后系统标识。
【单选题】Which of the following best summarizes the main idea of the passage?
A.
Mechanization of work has little changed the conditions of women.
B.
Mechanization revolutionizes a society's customary roles of its members.
C.
Mechanization of Work creates new jobs that did not exist previously.
D.
Women's work has changed considerably in the past 200 years.
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