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【多选题】
下列关于质谱鉴别法的说法中,正确的有 ( ) 。
A.
将被测物质离子化后，在高真空状态下按离子的比 (m/z) 大小分高
B.
使用高分辨率质谱可得到离子的精确质量数，然后计算出该化合物的分子式
C.
分子离子的各种化学键发生断裂后形成碎片离子，由此可推断其裂解方式，得到相应的结构信息
D.
鉴定化合物结构的重要参数有化学位移 δ 、峰面积、偶合常数、时间
E.
利用原子蒸气可以吸收由该元素作为阴极的空心阴极灯发出的特征谱线的特性，根据供试溶液在特征谱线处的最大吸收和特征谱线的强度减弱程度可以进行定性、定量分析
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举一反三
【单选题】两肩,多脂肪和“满月脸”——面圆脖子粗,脸色深红晦暗有疮疤;躯体厚实、肥胖,但四肢不胖。该症状产生的原因是
A.
甲状腺功能亢进症
B.
肾上腺皮质功能减退
C.
肾上腺皮质亢进
D.
甲状腺功能减退
E.
生长激素过多
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【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
school
B.
bank
C.
newspaper
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【单选题】O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long, but h...
A.
North Carolina
B.
South Carolina
C.
West Carolina
查看完整题目与答案
【判断题】具体一宗有土地使用年限的房地产的价格，从长远来看是趋于下降的。 （ ）
A.
正确
B.
错误
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【单选题】依次填写关联词都正确的是( ) 我以为她一定最安全了, 不做门房, 不是小孩子, 生得不好看, 颈子上还有许多炙疮疤。
A.
因为    也    又    而且
B.
既    也    又      而且
C.
因为     又    也    况且
D.
既    又    也     况且
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【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
people thought he had stolen money from the bank
B.
he broke the law by not using his own name
C.
he wanted to write stories about prisoners
查看完整题目与答案
【单选题】患者,李先生,今年31岁,通过核磁共振检查发现肾上腺长了一个3~4公分的肿瘤。肾上腺肿瘤分为很多类,李先生得的是库欣综合征,李先生有库欣综合征的典型症状:“水牛背”--颈后、两肩多脂肪和“满月脸”--面圆脖子粗,脸色深红晦暗有疮疤;躯体厚实、肥胖,但四肢不胖。该症状产生的原因是
A.
甲状腺功能亢进
B.
肾上腺皮质功能减退
C.
肾上腺皮质功能亢进
D.
甲状腺功能减退
E.
生长激素过多
查看完整题目与答案
【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
18
B.
19
C.
20
查看完整题目与答案
【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
New York
B.
Texas
C.
North Carolina
查看完整题目与答案
【判断题】鲁迅《阿Q正传》中写到阿Q因为头上的癞疮疤而忌讳别人说“癞”,在艺术构思方式上属于一种突出。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】两肩,多脂肪和“满月脸”——面圆脖子粗,脸色深红晦暗有疮疤;躯体厚实、肥胖,但四肢不胖。该症状产生的原因是
A.
甲状腺功能亢进症
B.
肾上腺皮质功能减退
C.
肾上腺皮质亢进
D.
甲状腺功能减退
E.
生长激素过多
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【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
school
B.
bank
C.
newspaper
查看完整题目与答案
【单选题】O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long, but h...
A.
North Carolina
B.
South Carolina
C.
West Carolina
查看完整题目与答案
【判断题】具体一宗有土地使用年限的房地产的价格，从长远来看是趋于下降的。 （ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】依次填写关联词都正确的是( ) 我以为她一定最安全了, 不做门房, 不是小孩子, 生得不好看, 颈子上还有许多炙疮疤。
A.
因为    也    又    而且
B.
既    也    又      而且
C.
因为     又    也    况且
D.
既    又    也     况且
查看完整题目与答案
【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
people thought he had stolen money from the bank
B.
he broke the law by not using his own name
C.
he wanted to write stories about prisoners
查看完整题目与答案
【单选题】患者,李先生,今年31岁,通过核磁共振检查发现肾上腺长了一个3~4公分的肿瘤。肾上腺肿瘤分为很多类,李先生得的是库欣综合征,李先生有库欣综合征的典型症状:“水牛背”--颈后、两肩多脂肪和“满月脸”--面圆脖子粗,脸色深红晦暗有疮疤;躯体厚实、肥胖,但四肢不胖。该症状产生的原因是
A.
甲状腺功能亢进
B.
肾上腺皮质功能减退
C.
肾上腺皮质功能亢进
D.
甲状腺功能减退
E.
生长激素过多
查看完整题目与答案
【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
18
B.
19
C.
20
查看完整题目与答案
【单选题】三、阅读理解 O. Henry was a pen name used by an American writer, William Sydney Porter. He was born in North Carolina in 1862. As a young boy he lived an exciting life. He did not go to school for very long...
A.
New York
B.
Texas
C.
North Carolina
查看完整题目与答案
【判断题】鲁迅《阿Q正传》中写到阿Q因为头上的癞疮疤而忌讳别人说“癞”,在艺术构思方式上属于一种突出。
A.
正确
B.
错误
查看完整题目与答案