If nature does not provide man with the necessary material,it is the laboratory ____ he will turnto for it.\x05 \x05A.where\x05B.that\x05C.which\x05D.what为什么不能选where
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