标题: 求助！！！！ [打印本页] 作者: fengyouxing 时间: 2012-5-20 22:08 标题: 求助！！！！ 第一次发帖。。但是这个实在不是很明白 Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to “touch” each exhibit, which thereby activates the animated functions of the piece.
A. exhibit, which thereby activates
B. exhibit, in turn an activation of
C. exhibit, and it will activate
D. exhibit and thereby activate
E. exhibit which, as a result, activates 为什么选D，求解释，还有为什么activate不用单数形式？？？求指教！！！谢啦