相同型腔的数量除一模一腔外，可以是一模多腔，这时，从型腔平衡布置出发，型腔数量应该为（）。
A.偶数
B.奇数
C.小数
D.负整数
参考答案：A
— Bruce was killed in a traffic accident.
— _____ I talked with her yesterday morning! [ ]
A. What a pity!
B. I beg your pardon?
C. Sorry to hear that.
D. Is that so?
