下列源代码用于设置一个<;div>;元素的样式。再增加( )就可以获得如下图像。 div { width: 100px; height: 100px; border-style: solid; border-width: 5px; }[img=110x110]17e443a8753385d.png[/img] A: border-color: green blue orange red; B: border-color: blue orange red green; C: border-color: red green blue orange; D: border-color: orange red green blue;

It is a ___________ (绿色的)dog. A: blue B: orange C: 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;

​Which are the colours of life-saving appliances?‏ A: Orange, green or yellow. B: Orange, red or yellow. C: Orange, blue or green. D: Orange, yellow or green.

In the color circle, a primary color and the corresponding secondary<br/>color (such as red and green, yellow and purple, blue and orange) are<br/>called ( ). A: Intermediate colors B: Three primary colors C: Compound colors D: Complementary colors