治疗骨折的原则是复位、固定、功能锻炼。
参考答案：对
He's not got another job yet and it's not _____ that he will for some time. [ ]
A. likely
B. easily
C. hardly
D. difficult
绝对误差Δ与被测量的真值Ax之比是（）误差。
A.实际相对误差
B.示值相对误差
C.引用相对误差
D.系统相对误差
