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【简答题】
应用Pauling规则： (1)判断H3PO4 (pKa=2．12)，H3PO3 (pKa=1．80)和H3PO2 (pKa=2．0)的结构； (2)粗略估计H3PO4，H2PO4-和HPO42-的pKa值。
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【单选题】男，44岁。因消瘦、口渴、乏力3月就诊。空腹血糖9.4mmol／L，尿糖阴性。现口渴引饮，饮食减少，精神不振，四肢乏力，体瘦，舌质淡红，苔白而干，脉弱。若患者汗出过多，可加的中药是（）
A.
五味子，山萸肉
B.
肉苁蓉，炙黄芪
C.
炙黄芪，麦冬
D.
麻黄根，浮小麦
E.
五味子，炙黄芪
查看完整题目与答案
【多选题】Which are acceptable as a summary of the original sentence in the following pairs?
A.
People whose professional activity lies in the field of politics are not, on the whole, conspicuous for their respect for factual accuracy. Politicians seldom lie.
B.
Failure to assimilate an adequate quantity of solid food over an extended period of time is absolutely certain to lead, in due course, to a fatal conclusion. Lack of food causes death.
C.
The climatic conditions prevailing in the British Isles show a pattern of alternating and unpredictable periods of dry and wet weather, accompanied by a similarly irregular cycle of temperature changes. British weather is changeable.
D.
It is undeniable that the large majority of non-native learners of English experience a number of problems in attempting to master the phonetic patterns of the language. It cannot be denied that many non-native learners of English experience a lot of problems in attempting to master the phonetic patterns of the language.
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【单选题】( )断口呈灰白相见的麻点状,性能不好,极少应用
A.
白口铸铁
B.
灰口铸铁
C.
球墨铸铁
D.
马口铸铁
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【单选题】中药黄芪具有降压、利尿、强心作用的活性成分是
A.
黄芪皂苷
B.
黄芪多糖
C.
甜菜碱
D.
氨基酸
E.
异黄酮
查看完整题目与答案
【判断题】如果要启动线程，需要直接调用Thread的run方法。
A.
正确
B.
错误
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【单选题】中药黄芪具有增强免疫作用的活性成分是
A.
黄芪皂苷
B.
黄芪多糖
C.
甜菜碱
D.
氨基酸
E.
异黄酮
查看完整题目与答案
【单选题】San Francisco is located on the coast of California in an area often called the Bay Area. The weather is generally very mild, seldom getting really cold or really hot. Its mild climate is one reason m...
A.
San Francisco has many neat things to do.
B.
It seldom snows in California.
C.
Many people choose to live in California.
D.
The weather in San Francisco is generally very mild.
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【单选题】（）其断口呈灰白相见的麻点状，性能不好，极少应用。
A.
白口铸铁
B.
灰口铸铁
C.
球墨铸铁
D.
麻口铸铁
查看完整题目与答案
【单选题】黄芪多糖的药性( )。
A.
甘、温
B.
甘、平
C.
苦、寒
D.
苦、凉
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【单选题】可以配下边这幅画的诗句有( ) 1两岸青山相对出,孤帆一片日边来 2两岸猿声啼不住,轻舟已过万重山 3不识庐山真面目,只缘身在此山中 4不畏浮云遮望眼,只缘身在最高层
A.
①②
B.
①④
C.
②③
D.
③④
查看完整题目与答案
相关题目：
【单选题】男，44岁。因消瘦、口渴、乏力3月就诊。空腹血糖9.4mmol／L，尿糖阴性。现口渴引饮，饮食减少，精神不振，四肢乏力，体瘦，舌质淡红，苔白而干，脉弱。若患者汗出过多，可加的中药是（）
A.
五味子，山萸肉
B.
肉苁蓉，炙黄芪
C.
炙黄芪，麦冬
D.
麻黄根，浮小麦
E.
五味子，炙黄芪
查看完整题目与答案
【多选题】Which are acceptable as a summary of the original sentence in the following pairs?
A.
People whose professional activity lies in the field of politics are not, on the whole, conspicuous for their respect for factual accuracy. Politicians seldom lie.
B.
Failure to assimilate an adequate quantity of solid food over an extended period of time is absolutely certain to lead, in due course, to a fatal conclusion. Lack of food causes death.
C.
The climatic conditions prevailing in the British Isles show a pattern of alternating and unpredictable periods of dry and wet weather, accompanied by a similarly irregular cycle of temperature changes. British weather is changeable.
D.
It is undeniable that the large majority of non-native learners of English experience a number of problems in attempting to master the phonetic patterns of the language. It cannot be denied that many non-native learners of English experience a lot of problems in attempting to master the phonetic patterns of the language.
查看完整题目与答案
【单选题】( )断口呈灰白相见的麻点状,性能不好,极少应用
A.
白口铸铁
B.
灰口铸铁
C.
球墨铸铁
D.
马口铸铁
查看完整题目与答案
【单选题】中药黄芪具有降压、利尿、强心作用的活性成分是
A.
黄芪皂苷
B.
黄芪多糖
C.
甜菜碱
D.
氨基酸
E.
异黄酮
查看完整题目与答案
【判断题】如果要启动线程，需要直接调用Thread的run方法。
A.
正确
B.
错误
查看完整题目与答案
【单选题】中药黄芪具有增强免疫作用的活性成分是
A.
黄芪皂苷
B.
黄芪多糖
C.
甜菜碱
D.
氨基酸
E.
异黄酮
查看完整题目与答案
【单选题】San Francisco is located on the coast of California in an area often called the Bay Area. The weather is generally very mild, seldom getting really cold or really hot. Its mild climate is one reason m...
A.
San Francisco has many neat things to do.
B.
It seldom snows in California.
C.
Many people choose to live in California.
D.
The weather in San Francisco is generally very mild.
查看完整题目与答案
【单选题】（）其断口呈灰白相见的麻点状，性能不好，极少应用。
A.
白口铸铁
B.
灰口铸铁
C.
球墨铸铁
D.
麻口铸铁
查看完整题目与答案
【单选题】黄芪多糖的药性( )。
A.
甘、温
B.
甘、平
C.
苦、寒
D.
苦、凉
查看完整题目与答案
【单选题】可以配下边这幅画的诗句有( ) 1两岸青山相对出,孤帆一片日边来 2两岸猿声啼不住,轻舟已过万重山 3不识庐山真面目,只缘身在此山中 4不畏浮云遮望眼,只缘身在最高层
A.
①②
B.
①④
C.
②③
D.
③④
查看完整题目与答案