You _____ your father. [ ]
A. look
B. like
C. looks like
D. look like
答案：D
—Look! Here comes a boy! Who is he?
—He's my ______. [ ]
A. Aunt Mary
B. Mary Aunt
C. Cousin Tony
D. Tony Cousin
可通过ADCC作用介导细胞毒作用的细胞是
A．浆细胞
B．CTL
C．B细胞
D．NK细胞
E．肥大细胞
