Pseudomembranous colitis is caused by Clostridium difficile, and has become more common with increasing antibiotic use.
伪膜性大肠炎是困难状杆菌所引发的, 随著抗生素使用增加,这个疾病也变的更加容易出现.
Le caract è re chinois est tr è s difficile pour les é trang è res.
汉语的方块字对外国人来说很难.
Qui , c'est difficile . La partie d 'é coute.
答:是的,难,听力难.
C_3H Axenic Mice Associated with Hamster Flora: An Experimental Model for Studying Colonization Resistance to C. difficile
对引入仓鼠菌群的C3H无菌小鼠拮抗艰难梭菌定居实验模型的研究
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