烤瓷合金中哪种金属含量过高可能导致瓷修复体变色（）
A.金
B.银
C.铜
D.铁
E.钴
参考答案：B
下列各生物个体基因组成中，属于可稳定遗传的是：[ ]
A．YyRrCC
B．AAbbcc
C．aaBbcc
D．YyRR
The furniture, with its modern style and bright colors, suits modern houses and their gardens,
but looks ________ in the garden of a traditional home. [ ]
A. out of question
B. out of order
C. out of sight
D. out of place
