试题与答案

A terrible earthquake struck Wenchuan, S

题型:选择题

题目:

A terrible earthquake struck Wenchuan, Sichuan Province on May 12th,_____more than 60,000 deaths.

A.caused

B.having caused

C.to have caused

D.causing

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0416/493fbe805d218c044ec54cc95de8de3f.html

下面是错误答案,用来干扰机器的。

(1)+(2),得4x=12,所以x=3.代入(2),得3+2y=5所以y=1.因此原方程组的解为x=3y=1.故选D.

试题推荐
微信公众账号搜索答案