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【多选题】
胸膜腔病变主要包括（）A.
肺炎
B.
肺水肿
C.
气胸
D.
胸腔积液
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举一反三
【简答题】什么叫互换性?
【单选题】Research has to focus on the cost benefit of factors such as reliability because ______.
A.
as reliability increases, manufacturing final cost may increase
B.
as reliability increases, manufacturing costs and the final cost will decrease
C.
as reliability decreases, manufacturing costs and the final cost will decrease
D.
as reliability increases, manufacturing costs and the final cost may increase
【单选题】Which one is true about reliability and validity?
A.
Validity is pertinent only to a particular instrument and it is an ideal state that you as a researcher to achieve.
B.
Construct validity is a less sophisticated technique for establishing the validity of an instrument.
C.
Reliability is the degree of feasibility or precision in the measurement made by a research instrument.
D.
Rationale equivalence method are not belonged to the method of reliability.
【简答题】Explain the qualities of reliability.
【单选题】Which method for establishing reliability does not depend on using the measure itself?
A.
test-retest reliability
B.
split-half reliability
C.
face reliability
D.
research worker reliability
E.
conceptualization of feelings
【简答题】A．sociability B．honesty C．stability D．reliability
【简答题】维克利经过研究对布拉德福定律提出了修正，认为布氏定律不仅局限于划分的三个区，他证明了可将等级排列的期刊划分成任意多个区得出维氏公式：T1：T2：T3：⋯：Tj=（ ）：（ ）：（ ）：（ ）：⋯：（ ）（b 为常数，称为维氏分布系数，Tj 为前 j 个区的杂志数量之和）。(提示：n的平方为可以表示为n^2)
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