题目类型：
单选题
题目内容
正确答案
A
题目解析
<img alt="" src="https://file.gaojiufeng.cn/learnAppQuestion/5f/98/5f989e235c4963155bd3b6a378ea5a2d.jpg" style="width: 100%;height: auto;"><img alt="" src="https://file.gaojiufeng.cn/learnAppQuestion/ca/37/ca37a34886f21ebd5ce8fa5576c9971e.jpg" style="width: 100%;height: auto;">