Some equipment as well as a number of maps and books ________ to the area since the earthquake

occurred. [ ]

A. has been offered  

B. have been offered

C. is being offered  

D. are offered

下列语句没有歧义的一项是（）。

A．天色变暗，自行车还没有修好，修车的可急坏了。

B．浙江省图书馆收藏有不少关于鲁迅的研究著作。

C．说来好笑，躺在床上没多久，我就想起来了。

D．学校领导对他的批评是有充分准备的。