能够检索子字符串的函数是()
A.InStr
B.Find
C.Lookup
D.Seek
参考答案:A
it’s difficult to make her dream come true,she never gives up
A Though B Unless C Because D If
一定条件下,白蛋白与溴甲酚绿结合形成绿色复合物,其吸收峰在()
A.280nm
B.340nm
C.450nm
D.560nm
E.628nm