In
human populatin, there is one man who is red green color blind in 12
men. What is the ratio of red green color blind in women? ( )
A: 1/12
B: 11/12
C: 1/144
D: 11/72
human populatin, there is one man who is red green color blind in 12
men. What is the ratio of red green color blind in women? ( )
A: 1/12
B: 11/12
C: 1/144
D: 11/72
举一反三
- When the color turns green itmeans they’re doing well;when the color turns red itmeans they might fail. A: be green；Be red B: Be green；be red C: Green；red D: green；Red
- 下面哪一个是标签选择器？ A: p{font-size:20px;color:red;} B: .red{color:red;} C: h2{font-size:30px;color:green;} D: E: green{color:green;}
- 下面使用了class类选择器的CSS样式是 A: div{ font-size:12;color:green;} B: h1{ font-size:12;color:green;} C: a.nav{font-size:12;color:green;} D: E: tit{ font-size:12;color:green;}
- 下面对枚举变量的定义中，正确的是( )。 A: enum color {red, blue, grenn} a, b; B: enum color={red, blue, green} a,b; C: enum color={"red", "blue", "green"} a, b; D: enum color {red, blue, green} a, b;
- color(‘red’,’green’)表示（）