• 2022-06-07
    There are _____ texts. They are Text A _________________, Text B _________________, Text C _________________, Text D _________________.
  • four;4  Communication and Context;Communication and context;communication and context  The Business Context;The business context;the business context  The Educational Context;The educational context;the educational context  The Health Care Context;The health care context;the health care context

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    • 0

      以下哪段代码不能正确创建函数show()?() A: functionshow(text){alert(text);} B: varshowFun=functionshow(text){alert(text);} C: varshowFun=function(text){alert(text);} D: varshowFun=newfunction("text","alert(text)"};

    • 1

      若函数$y=y(x)$由方程${{\text{e}}^{x+y}}=xy+1$确定,则 ( )。 A: $\text{d}x=\frac{{{\text{e}}^{x+y}}-x}{y-{{\text{e}}^{x+y}}}\text{d}y$ B: $\text{d}y=\frac{{{\text{e}}^{x+y}}-x}{y-{{\text{e}}^{x+y}}}\text{d}x$ C: $\text{d}x=\frac{{{\text{e}}^{x+y}}+x}{y+{{\text{e}}^{x+y}}}\text{d}y$ D: $\text{d}y=\frac{{{\text{e}}^{x+y}}+x}{y+{{\text{e}}^{x+y}}}\text{d}x$

    • 2

      以下哪段代码能正确创建函数show() A: var showFun = new function{"text","alert(text)"}; B: function show(text){alert(text);} C: var showFun = function show(text){alert(text);} D: var showFun = function(text){alert(text);}

    • 3

      下列( )函数不是截取字符串的函数。 A: LEFT(text,[num_chars]) B: RIGHT(text,[num_chars]) C: MID(text,start_num,num_chars) D: LEN(text)

    • 4

      从原点向曲线$$y=1-\ln x$$作切线,则由切线、曲线和$$x$$轴围成图形的面积为(). A: $$\frac{1}{2}{{\text{e}}^{2}}+\text{e}$$ B: $$\frac{1}{2}{{\text{e}}^{2}}-\text{e}$$ C: $${{\text{e}}^{2}}+\text{e}$$ D: $${{\text{e}}^{2}}-\text{e}$$