题干
—Tire patient looks much better．_____ is it that has made him _____ he is today?
—Perhaps the special medicine and his family’s patient care．
—Perhaps the special medicine and his family’s patient care．
A：What; that
B：That; that
C：What; what
D：What; which
答案(点此获取答案解析）
C
是同类二次根式的是：（ ）