①三种投资产品的风险由小到大有可能为丙<乙<甲

②在储蓄、保险、股票这几种方式中，甲产品可能是保险

③如果乙产品是金融债券，则甲产品可能是政府债券

④如果丙产品是金融债券，则乙产品可能是企业债券

小张在日记里写道：“放学时，铃声是悦耳的；考试时，铃声是紧张的；思考时，铃声是刺耳的。”这说明（    ）

根据对话内容选择合适的答案填空。

A: Look, there are many animals in the zoo. Let's go and see them.

B: OK. Let's go.

A: Tom, there are so many birds in the tree.

B: Yes. There’s a monkey, too. I love monkeys.

A: There are two snakes under the chair.

B: Yes. But I don't like snakes.

A: Look, there are four chicks here.

B: How beautiful they are!

A: Two leopards are over there.

B: They are beautiful, too.