單項選擇題如何求得2和4中最大的數(shù)?()

A.Math.ceil(2,4)
B.Math.max(2,4)
C.ceil(2,4)
D.top(2,4)


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1.單項選擇題定義JavaScript數(shù)組的正確方法是?()

A.var txt = new Array="tim","kim","jim"
B.var txt = new Array(1:"tim",2:"kim",3:"jim")
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2.單項選擇題如何在JavaScript中添加注釋?()

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B.< !--This is a comment-->
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3.單項選擇題for循環(huán)如何開始?()

A.for (i <= 5; i++)
B.for (i = 0; i <= 5; i++)
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A.if =! 5 then
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A.if (i==5)
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