原发性肝癌从出现症状到死亡一般为:()
A.1年
B.半年以上
C.3~6个月
D.1个月
E.2个月
参考答案:C
—Zhou Weilun could hardly speak English three years ago, ________?
—No, he couldn't. But now he is quite good at it.[ ]
A. couldn't he
B. could he
C. didn't he
D. did he
关于金融市场体系中包括的因素中,正确的有()。
A.金融市场交易客体
B.金融市场交易主体
C.金融市场交易工具
D.金融市场交易数量
E.金融市场交易价格