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【单选题】
某碳酸钠溶液的pH约为12，分别加入下列试剂，溶液仍然是无色透明的是（ ）A.
氢氧化钾溶液
B.
氯化钙溶液
C.
紫色石蕊试液
D.
无色酚酞试液
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The ruling class had long been ________ to the suffering of the peasants, which led to the revolution.
A.
opposed
B.
indifferent
C.
contrary
D.
sensitive
【单选题】The new ruling class had built a cultural barrier against him by building their French against his own language.
A.
The new ruling class used their French to against his language, thus they build a cultural barrier.
B.
The new ruling class used French to fight against Saxon peasants'English, thus it made it difficult for the peasants to accept the language and the culture of the rulers.
C.
The new ruling class used French to fight against Saxon peasants'English, thus it made it difficult for the French to accept the language and the culture of the rulers.
【判断题】The ruling class had long been indifferent to the sufferings of the peasants,which led to leave
A.
正确
B.
错误
【简答题】The new ruling class had built a cultural barrier...his own language. (Para. 11)
【简答题】The new ruling class had built a cultural barrier against him by building their French against his own language.
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