【单选题】It was _________ difficult work ________ nobody can do it.
【单选题】在团体保险中采取的经验费率方法是指以上年度的团体的( )决定下年度的保险费率。
【单选题】What does the man mean?
A.
Nobody can be the best.
B.
Do as well as you can.
C.
It's difficult to do something perfectly.
【单选题】The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the ______.
A.
horizontal parallax decreases
B.
observer's height above sea level increases
C.
humidity of the atmosphere decreases
D.
altitude of the body decreases
【单选题】Whats does the man mean?
A.
Nobody can be the best.
B.
Do as well as you can.
C.
It’s difficult to do something important.
D.
Its impossible to do something important.
【单选题】Nobody can do so many things well at_____.
【简答题】So far nobody ______ (choose) to do the job by the company.
【单选题】It was _________ difficult work _________ nobody can do it.
【单选题】Do you believe some special dogs can do things ______ man?