Dev Kumar Thapa and Anshu Pandey, two scientists from theIndian Institute of Science, suggest a concoction of gold and silver nanoparticles achieves the Nobel Prize–worthy goal。这是在Scientific American上一篇文章中的句子,我感到困惑的是 achieves的主语是谁?是指...
1.The movement has been punched,as has been the students.我想请问下这里as引导的倒装,如果是完成时的被动或者进行态的话,是把have been放前面,还是只把have放前面就行了? 2.如果是have been放前面的话,为什么否定副词的倒装是把have放...
He ____ the key, so we ______ intothe office.A. hadn't left; can't B. didn't leave ;couldn't have got C. hadn't left; could't getD. hasn't left; could't get答案是B,还是C?谢谢!
The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.A. had lost B. would have lost C. would lose D. should have lost请问:应该选哪个? had...