—Where is your pencil?
—______ is in my bag. [ ]
A. Its
B. It's
C. It
答案:C
5-Fu属()
A.细胞毒素类
B.抗代谢类
C.抗生素类
D.植物类
E.激素类
安装防抱死制动装置(ABS)的机动车紧急制动时,可用力踏制动踏板。