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【单选题】
误差按照性质分类可以分为三类,以下选项错误的是( )A.
系统误差
B.
随机误差
C.
粗大误差
D.
相对误差
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举一反三
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
whether the experimented treatments should be compared against local standards
B.
whether the experimented treatments are shown to be effective
C.
when local communities will be able to carry out their own research projects
D.
the prohibitive costs involved
【简答题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You s...
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