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【简答题】
称取草酸(H 2 C 2 O 4 ·2H 2 O)0.3808g，溶于水后用NaOH标准滴定溶液滴定，终点时消耗NaOH溶液24.56mL，计算NaOH溶液的物质的量浓度。
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【简答题】矿井生产常用的地质图件有哪些种类？
【简答题】生产矿井常用的地质图件有哪些？
【单选题】Which of the following does not account for doctors’inclination to provide patients with more treatment than necessary?
A.
The paying mode in medical treatment lures them to make more money by treating more．
B.
They can not effectively communicate with desperate family members about a reasonable treatment plan．
C.
They fear that patients may sue them for not trying their best to save patients.
D.
Doctors want to experiment new medical approaches on patients．
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