已知函数f(x)=ax+x-b的零点x0∈(n,n+1)(n∈Z),其中常数a,b满足2a=3,3b=2,则n的值是[ ]
A.-2
B.-1
C.0
D.1
答案:B
― What do you want to be in the future, John?
― I want to be ________ fashion designer. It is ________ interesting job.
A.a; the
B.an; a
C.a; an
D.an; the
网状纤维主要见于肿瘤何处有意义
A.肿瘤腺管之间
B.癌细胞之间
C.肉瘤细胞之间
D.癌细胞团之间
E.转移癌细胞之间