野生动物经历了（）阶段成为现代的家畜。
A.驯养
B.驯化
C.自然选择
D.人工选择
参考答案：B
She must be looking forward as much to his return as he himself is to _______ her.
A．see
B．have seen
C．seeing
D．be seeing
目前我国债券回购交易的报价方式是以( )报价。
A．百元面值
B．1手债券面值
C．每百元资金到期年收益
D．每百元资金到期季收益率
