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【简答题】
为什么用 HCl 溶液滴定 NaOH 时选用甲基橙指试剂更好,而 NaOH 滴定 HCl 时选用酚酞指示剂更好一些?
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【简答题】1mol·L -1 HA溶液pH=4，则0.1mol·L -1 NaA溶液的pH为______。
【简答题】将下列十进制数转换成842的BCD码: (1)24 (2)12.5 (3)2.18
【单选题】听力原文：M: What did Professor Clark think about my presentation? W: He said your presentation was right on the target. Q: What did Professor Clark think about the man’s presentation? (14)
A.
The man didn't see eye to eye with Professor Clark.
B.
The man caught the most important point of the topic.
C.
The man's presentation had a right purpose.
D.
The man was right to give the presentation.
【单选题】According to the author, which of the following statements is true?
A.
Neither the presentation of the news nor its interpretation is objective.
B.
The presentation of the news is more objective than its interpretation.
C.
The presentation of the news and its interpretation are objective.
D.
The presentation of the news is more subjective than its interpretation.
【简答题】(a) Your assistant has been reading the IASB’s Framework for the preparation and presentation of financial statements (Framework) and as part of the qualitative characteristics of financial statements...
【简答题】同步锁可以是任意【 】。
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