题目内容
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[单选题]
2019ASCO更新的KEYNOTE-189结果中接受pembrolizumab+化疗治疗的患者的中位PFS2为?()
A.15.6个月
B.16.5个月
C.17个月
D.20.7个月
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A.15.6个月
B.16.5个月
C.17个月
D.20.7个月
A.56%
B.49%
C.51%
D.44%
A.9.8%
B.13.4%
C.15.5%
D.16.7%
A.500mg
B.250mg
C.375mg
D.425mg