
A.36m和6m/s
B.36m和9m/s
C.12m和6m/s
D.12m和9m/s
[单选题]A.36m和6m/sB.36m和9m/sC.12m和6m/sD.12m和9m/s
[单选题]A.36m和6m/sB.36m和9m/sC.12m和6m/sD.12m和9m/s
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[单选题]A.不易寻求共同就位道B.受力时基牙承受非轴向力C.不易选择合适的固位体D.备牙时切割牙体组织过多E.容易引起基牙龋坏
[单选题]A.275896t/dB.502744t/dC.565492t/dD.628430t/d