Hp的根除是指治疗结束多长时间后检测为阴性
A．结束当时
B．1周
C．4周
D．3周
E．2周
参考答案：C
如图所示的四种情景中，属于光的反射的是（ ）
A．
B．
C．
D．
261. The players of China won 150 gold medals in Pusan Asain Games of 2002. Our players _____ to be very great.
A．are proved
B．did prove
C．were proved
D．was proved
