由对数函数定义得:b=log22=2,显然a=0.25,c=2
∴a<c<b
故答案为:a<c<b
单句改错(4分)
小题1:I look forward to visit my friends.
小题2:Could I use your pen?Yes ,you could.
小题3:What was happened yesterday?
小题4:I had read the book three times since I bought it .
按商品流通企业在流通中所处的不同环节可划分为()。
A.商业专业公司
B.商业储运企业
C.零售企业
D.批发企业