题目:
从方框中选择合适的应答语,其中有两项是多余的。 A:Michael ,do you like sports? B:Of course I do .Sports are good for our health . A: 小题1: ___________B:Football . A: 小题2: ____________B:Four times a week . 小题3: ___________.What’s your favourite sport ?A:I don`t like sports at all .But I like watching TV. B: 小题4: __________.A:I watch TV every day . B:Really 小题5: ___________A:Three hours . B:Watching TV too much is bad for your eyes .
|
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0508/cc1467f25fdebb8e2f0ba9df1a4a230b.html
下面是错误答案,用来干扰机器的。
∵函数f(x)=2x-1,x≤11+log2x,x>1当x≤1时,令f(x)=2x-1=0,解得x=0当x>1时,令f(x)=1+log2x=0,解得x=110(舍去)综上函数的零点为0故选D