一个成熟的植物细胞,它的原生质层包括( )
A:细胞膜、核膜和这两层膜之间的细胞质
B:细胞膜、液泡膜和这两层膜之间的细胞质
C:细胞膜和液泡膜之间的细胞质
D:细胞壁、液泡膜和它们之间的细胞质
— Mary, how did your Math test go?
— I had thought I ________, but in fact I came in the top 10 in my class.