水准测量中要求前后视距离相等,其目的是为了消除()的误差影响。
A.水准管轴不平行于视准轴;
B.圆水准轴不平行于仪器竖轴;
C.十字丝横丝不水平
参考答案:A
非小细胞肺癌单纯放疗的5年生存率是()
A.小于2%
B.5%~10%
C.20%
D.30%
E.40%
In my opinion, you won't ________ the fact that you have made another mistake in your work. [ ]
A. get away with
B. get along with
C. keep up with
D. keep in with