<p>设<img src="https://file.gaojiufeng.cn/learnAppQuestion/07/2b/072b333590cad1f6cbd102f49fa65a79.jpg" style="width: 100%;height: auto;">，<img src="https://file.gaojiufeng.cn/learnAppQuestion/6c/a2/6ca284549985ac22ee77b9cb732c7f70.jpg" style="width: 100%;height: auto;">，<img src="https://file.gaojiufeng.cn/learnAppQuestion/98/32/9832f346c644e3cd2e61de12a54a2266.jpg" style="width: 100%;height: auto;">，<img src="https://file.gaojiufeng.cn/learnAppQuestion/43/5d/435d8650fac2d1c3fcb07e3024f93444.jpg" style="width: 100%;height: auto;">，<img src="https://file.gaojiufeng.cn/learnAppQuestion/d2/57/d257a6396a33e8ea1f9c57e75a3b6ffe.jpg" style="width: 100%;height: auto;">是四维向量，则 （ ）</p>