题目: 分解因式:2a2-4a=( )。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0512/50f57d599640b7428427c4a4e5a943f5.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:选择题 Polar bears live mostly on _____ sea ice, which they use as _____ platform for hunting seals. [ ]A. a; a B. a; theC. 不填; a D. the; 不填 查看答案