If nature does not provide man with the necessary material,it is the laboratory ____ he will turn
问题描述：
If nature does not provide man with the necessary material,it is the laboratory ____ he will turn
to for it．\x05
\x05A．where\x05B．that\x05C．which\x05D．what
为什么不能选where
答
因为turn后面有to了.where= to which这是个强调句么··额后面是的··抱歉 看漏了强调句的话这里只能用that我为什么一直觉得laboratory前面要加in 呢。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。晕把强调句还原 he will turn to the lab for it.