if newton still lived today,he would be surprised by what _____in science and technology.答案选择为has been discoverd.本人不太明白,为什么不用过去完成时呢?

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/12 05:33:38
xQ[N@, \)t&MK((b $!*P LJ1b;[pTd~8_7<əD6N̼iDST!yCRQ,9XLJ9O*tiiJd]h:q\YGvd9Xd*#†DQʹQ9% [ o! " ,n-o?sh0@ߠ5>Hr WdM7?Afx;] m +Mb xEnn,{`+o]ք;ªtѱXp'}]; `Yen8~n߷`6Ś"Wa8BhAbs<~]deA &bɂ=*ٷKͬ'>QM