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【简答题】
以下程序实现:输入园的半径r和运算标志m,按照运算标志进行指定计算,请填空。 标志 运算 a 面积 c 周长 b 二者均计算 #define pi=3.14159 main() { char m; float r,c,a; printf("Input mark a c or b && r\n"); scanf("%c %f",&m,&r); if (【1】) {a=pi*r*r;printf("area is %f",a);} if (【2】) {c=2*pi*r;printf("circle is %f",c);} if (【3】) {a=pi*r*r;c=2*pi*r; printf("area && circle are %f %f",a,c); } }
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举一反三
【单选题】Total risk is measured by _____ and systematic risk is measured by _____.
A.
beta; alpha
B.
beta; standard deviation
C.
alpha; beta
D.
standard deviation; beta
【简答题】2 经济型数控车床的电动机驱动的伺服系统是( )伺服系统。
【单选题】Where in the passage does the author mention leaving valuables in view is an invitation to the criminals?
A.
The first paragraph.
B.
The second paragraph.
C.
The third paragraph.
D.
The last paragraph.
【单选题】______Miller Anderson is an author of more than 8 novels, the forty-year-old writer has never enjoyed much fame.
A.
Nevertheless
B.
Furthermore
C.
In spite of
D.
Although
【判断题】There is an international marriage between the author and her husband. The author is a Chinese, while her husband is a Canadian.
A.
正确
B.
错误
【简答题】_________ is the way an author or an actor describes or shows what a character is like.
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