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【简答题】
晶闸管能够用弱电信号控制其导通,但不能控制其关断,故称为 。
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举一反三
【单选题】Read from Para 11 to Para 12. Which method of comparison and contrast is used here?
A.
One-side-at-a-time method: examine one subject thoroughly and then start the other.
B.
Point-by-point method: examine two subjects at the same time, discussing them point by point.
【单选题】What is the reason for the increase in the number of students?
A.
The requirement of educated workers by business.
B.
Raising of the legal age for going to work.
C.
The trend toward a shorter workday.
D.
People's concern for the future of the next generation.
【简答题】Read from Para 11 to Para 13. Which method of comparison and contrast is used here?
【单选题】以下正确的函数定义是( )。
A.
int f un4(int a, int b) { return a+b; }
B.
void f un4(int a, int b) { return a+b; }
C.
（ C ） int f un4(int a, int b) { fun4 = a+b; }
D.
void f un4(int a, int b){ fun4 = a+b; }
【单选题】If the number of employed persons in a country equals 24 million, the number of unemployed persons equals 8 million, and the number of persons over age 16 in the population equals 40 million, the unem...
A.
32%.
B.
25%.
C.
20%.
D.
8%.
【单选题】以下正确的函数定义是( )。
A.
void f un5();{ cout<< /div>
B.
void f un 5() { return f5;}
C.
void f un5() { cout<< /div>
D.
void f un5() { return 5;}
【简答题】Watch the video and fill in the following blanks. u01v1.wmv The name of the company Ford Motor Sales area (1) _____ The number of employees ...
【单选题】In a crate of fruit that contained strawberries, blueberries, and raspberries, the ratio of the number of pints of strawberries to the number of pints of blueberries to the number of pints of raspberr...
A.
2
B.
3
C.
4
D.
5
E.
6
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