A:<script language=”JavaScript” >
B:<script scr=language=”JavaScript” >
C:<script language=”JS” >
D:<script scr=”Java” >
如果成年人的体内长期缺乏维生素A,就有可能患( )
We often do______ homework in the evening. ( )
如图,矩形OABC内的阴影部分由曲线f(x)=sinx及直线x=a(a∈(0,2π)与x轴围成.向矩形OABC内随机掷一点,该点落在阴影部分的概率为12,则a=____
I like the hat. You look really cool in it.