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【单选题】
由于操作人员的某些主观性因素造成的误差属于 ( )A.
系统误差
B.
随机误差
C.
绝对误差
D.
绝对偏差
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举一反三
【单选题】Hi, Mike. I have _____ to tell you. [ ]
A.
important something
B.
something important
C.
anything important
D.
important anything
【单选题】What did the father do when the baby screamed that word at the airport?
A.
He corrected the baby.
B.
He tried to stop the baby.
C.
He hid himself somewhere.
D.
He didn t do anything.
【单选题】What did the father do when the baby screamed that word at the airport?
A.
He corrected the baby.
B.
He tried to stop the baby.
C.
He hid himself somewhere.
【单选题】When did the word “entrepreneur” first appear?
A.
In 1723
B.
In 1975
C.
In the French dictionary
D.
In 1997
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