所谓期货交易盈利或亏损就是指交易者在期货市场上合约建仓价格与实物交割时交割结算价之间的差额。()
参考答案:错
Like some of my classmate, I can’t live up to my teachers’ expectations; ______, I let them down.
A.in other words
B.after all
C.what’s more
D.more or less
以非结合胆红素增加为主的疾病是()
A.病毒性肝炎
B.胆石症
C.中毒性肝炎
D.蚕豆病
E.胰头癌