未知题型 听力原文：W: I haven't seen Paul for a long timE.How's he doing?M: He's working hard at some stories.Q: What's Paul doing now?(18)A.He's learning ChinesE.B.He's writing some stories.C.He's visiting in AmericA.

多项选择题 关于债券收益率的说法，正确的有（　　）。

多项选择题 我国商业银行理财产品可以直接投资的对象有（　　）