_______ does Jack like to eat for breakfast?[ ]
A. Who
B. How
C. What
D. How many
答案:C
近距离治疗疗效最好的是()
A.肺癌
B.食管癌
C.胆管癌
D.子宫颈癌
E.直肠癌
16, 24, 32, 40, 48, 56,( )
A.64 B.96 C.84 D.76