<p>A.K<img src="https://file.gaojiufeng.cn/learnAppQuestion/1b/5e/1b5eaa9dc08a2b761ba1440b824b5cca.gif" style="width: 100%;height: auto;">减小，V<img src="https://file.gaojiufeng.cn/learnAppQuestion/c6/a5/c6a512038d35c809606870f5d8cb2071.gif" style="width: 100%;height: auto;">减小</p>