题目6A. <img src="https://p.ananas.chaoxing.com/star3/origin/4f82eab9d3febada448b5ac31f544fad.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/2c1d0dc68559d8f0fdebb7c3f447ea86.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/54eba1831c6746d66659672de7cd65e9.png"><img src="https://p.ananas.chaoxing.com/star3/origin/54eba1831c6746d66659672de7cd65e9.png"><img src="https://p.ananas.chaoxing.com/star3/origin/412d16c5d860c14dcadecd84e0241f3c.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/7cc130efb11ba7a8568b8d7305992210.png">