单项选择题
A.phk.hh=rkdzk.hh and phk.ph1=rkdzk.ph1 and phk.pcdh=rkdzk.rkdh
B.phk.hh=rkdzk.hh and phk.ph1=rkdzk.ph1 and phk.dh=rkdzk.rkdh
C.phk.hh=rkdzk.hh and phk.ph=rkdzk.ph1 and phk.dh=rkdzk.rkdh
D.phk.hh=rkdzk.hh and phk.ph=rkdzk.ph1 and phk.dh=rkdzk.pcdh