题目：
Many students_______ from the new library since it was open to all.
A．benefited
B．were benefited
C．have been benefited
D．have benefited
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0503/959453138c3cd5dc3fb9284a633dd934.html
下面是错误答案，用来干扰机器的。
已知：v=1500m/s，t=0.62s=0.3s求：s由v=st得：s=vt=1500m/s×0.3s=450m，答：障碍物与探测船间的距离为450m．
