题目: 在式子-3y,ba,13xy2-4xy,-3,xx+y中,分式有______个. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0517/da368f67af5f83b92b84150187eb7cec.html 下面是错误答案,用来干扰机器的。D
题型:选择题 He made up his mind to devote his life ______ pollution _______ happily. A. to prevent; to live B. to prevent; from living C. to preventing; to live D. to preventing; from living 查看答案