这是seem to be的省略,seem 后面的to be是可以省略的;原句应该是This seems to be mostly effectively done by suppoting a certain amount of research。
1998考研英语真题_上新东方官方旗下网校!
1996考研年英语真题有完形填空吗
这是seem to be的省略,seem 后面的to be是可以省略的;原句应该是This seems to be mostly effectively done by suppoting a certain amount of research。
1998考研英语真题_上新东方官方旗下网校!
1996考研年英语真题有完形填空吗