即期交易的一方按约定价格买入或卖出一定数额的金融资产,交付及付款必须在当时完成。 ( )
参考答案:错
解析: 即期交易就是按照市价交易,不是按约定价格。
求下列各式中x的值
(1)16x2-49=0;
(2)(x-1)2=25;
(3)(2x)3=-8;
(4)-(x-3)3=27.
While he was at college,he took part in political activities,and was thrown into prison.
A.the;/
B./;the
C./;/
D.the;the