肯氏四类牙列缺损,义齿最佳就位方向()
A.由前向后
B.由后向前
C.垂直向
D.旋转
E.侧向
参考答案:A
The deal, _______ next week, will allow Charney to make a great fortune in the stock market.
A.completed
B.being completed
C.to be completed
D.having been completed
CY3型液压机构不同温度下预充压,可用下列公式换算()
A.Pt=[P20℃(273+t)]/293
B.Pt=[P20℃(273+t)]/273
C.Pt=P20℃293/(273+t)