所有鱼类都具有胃。
参考答案:错
下列抗结核药物可通过血-脑脊液屏障的是()
A.利福平
B.链霉素
C.异烟肼
D.利福布汀
E.乙胺丁醇
—Would you like to see the film with me?
—I'm sorry I ______ it twice.[ ]
A. see
B. will see
C. have seen
D. am seeing