小题1:John Brown and Anna Smith are Alan’s ____________.

A．parents

B．grandparents

C．brother and sister

D．uncle and aunt小题2:Mary is Sally’s ____________.

A．aunt

B．mother

C．sister

D．friend小题3:Ann is John Brown’s ____________.

A．son

B．granddaughter

C．grandson

D．daughter小题4:Tom and Kate are Ann’s ____________.

A．cousins

B．uncle and aunt

C．brother and sister

D．parents小题5:Sally has three ________.

A．aunts

B．brothers

C．sisters

D．Cousins

黏液表皮样癌的细胞组成是

A．表皮样细胞、腺上皮和黏液细胞

B．表皮样细胞、软骨样细胞和中间细胞

C．腺上皮细胞、黏液细胞和中间细胞

D．表皮样细胞、黏液细胞和中间细胞

E．黏液细胞、软骨样细胞和中间细胞