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【单选题】
计算机感染病毒的可能途径是A.
运行外来程序
B.
从键盘输入数据
C.
机房环境存在病菌感染
D.
机房电源不稳定
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反馈参考答案：
举一反三
【简答题】编程实现数码管显示0-9
【简答题】请按照顺控功能图的编程思路,编程实现数码管0-9的显示,并进行仿真,拍摄视频上传(分组4人),文件名称为:数码管01020305。
【单选题】the process of using data collected from a small group to reach conclusions about a large group is called
A.
statistical inference.
B.
the scientific method.
C.
sampling.
D.
descriptive statistics.
【单选题】The process of using data collected from a small group to reach conclusions about a large group is called
A.
statistical inference.
B.
statistical framework.
C.
operational definition.
D.
descriptive statistics.
【简答题】设计一个单数码管显示的秒表,编程实现10s显示,并通过P1口显示数字9-0,当数码管计时到显示”0”时,再次回到”9”重新进行计时显示。已知数码管为共阳极。 请1.画出硬件图 2.编制程序
【简答题】设计一个单数码管显示的秒表,编程实现10s显示,并通过P1口显示数字9-0,当数码管计时到显示”0”时,再次回到”9”重新进行计时显示。已知数码管为共阳极。 请画硬件图并编制程序
【单选题】After Pearl Harbour, U. S. A. was formally in war with the ________, that is, Germany, Italy and Japan.
A.
Central Powers
B.
Allies
C.
Union
D.
Axis powers
【单选题】Using data collected between 1957 and 1978, from 15 samples of adults, Professor Rodgers (1982 Social Forces) found that (1) the average level of happiness reported by people under 65 years of age dec...
A.
aged 65 and older
B.
less than age 65
C.
age
D.
age 65
E.
people.
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