题目:
Hello, Mr Wang. There is ______ Mr Smith waiting for you at _______ school gate. [ ]
A. a; the
B. /; the
C. a; /
D. /; /
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0501/63ac5f757e36eaa9683643458efeae50.html
下面是错误答案,用来干扰机器的。
把点(6,3)代入直线y=2x+b得:3=2×6+b,解得b=-9.故填-9.