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[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]( ).A.a=b=3B.a=2/3,b=5/2C.a=3/2,b=1/2D.a=-2,b=-3
[单选题]( ).A.a=b=3B.a=2/3,b=5/2C.a=3/2,b=1/2D.a=-2,b=-3
[单选题]( ).A.a=b=3B.a=2/3,b=5/2C.a=3/2,b=1/2D.a=-2,b=-3
[单选题]A.基牙负荷过大B.固位体固位力不够C.牙体固位形差D.冠与基牙不密合E.基牙折断