Would you like ____________ relish on the bread?[ ]
A. many
B. any
C. some
D. /
答案:C
Fe—C相图共晶转变温度()。
A、1148℃
B、1495℃
C、1727℃
D、927℃
某患者,一上前牙牙冠大部缺损,做桩冠修复时,根管制备的长度应达根长的
A.1/5~2/5B.3/5~4/5C.1/4~1/2D.1/3E.2/3~3/4