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搜题
【单选题】
按正态分布规律，测量值 x 出现在 μ-σ ≤ x ≤ μ+σ 区间的概率是A.
0.68
B.
0.34
C.
0.16
D.
0.84
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皮皮学刷刷变学霸
举一反三
【单选题】The students were chosen to be in her class because she is the best teacher and the students are the best students. They put them all together so they could show everybody else how to do it.
A.
√
B.
╳
【单选题】In the following paragraph, which is the best way to repeat the key noun “dolphins” so that the paragraph is more coherent? Dolphins are interesting because they display almost human behavior at time...
A.
a dolphin
B.
the animal
C.
they
D.
it
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