转炉煤气中CO含量的高低，与（）因素有关。
A.铁水中的舍碳量
B.炉口微压差
C.回收时间长短
D.吹氧压力
参考答案：A, B, C
Why Harry got laughed at a. Because he was self-conceited. b. Because he was turned down by the girl. c. Because he was not getting along well with the girl. d. Because he refused the girl’s invitation to see a movie.
遗产税的纳税人不包括( )。
A．遗产继承人
B．遗产管理人
C．遗嘱执行人
D．遗产被继承人
