铁合金是由一种或两种以上的（）或（）元素与铁元素组成的合金。
参考答案：金属；非金属
She was not _______, but she is ________ to go to school. [ ]
A. feel well; well enough
B. feeling well; well enough
C. feel gook; good enough
D. feeling good; good enough
下列不属于先天畸形的是______
A．单肾 B．异位肾 C．多囊肾 D．马蹄肾 E．重复肾
