: . :. __________________________.
A．
B．
C．
D．
参考答案：C
Fe吸收见于（）
A.胃
B.十二指肠
C.空肠下段
D.回肠
E.乙状结肠
Don’t worry about the situation we’re facing now. I think the problem can be ________ without too much difficulty if we don’t lose heart.
A．turned over
B．taken over
C．got over
D．gone over
