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【单选题】
喹诺酮类抗菌药容易与体内的金属离子发生络合反应，造成儿童缺钙、贫血、缺锌等副作用，这一副作用的产生主要与药物结构中哪一基团有关
A.
二氢吡啶环
B.
3位羧基和4位羰基
C.
5位氨基
D.
6位氟原子
E.
7位哌嗪环
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参考答案：
举一反三
【单选题】我国佛光出现的次数最多,也最精彩的是( )
A.
泰山
B.
黄山
C.
华山
D.
峨眉山
查看完整题目与答案
【单选题】眼球血管膜( )
A.
位于眼球最外层
B.
位于眼球最内层
C.
富有神经、血管和色素细胞
D.
由前向后分为虹膜、睫状体、脉络膜
E.
由疏松结缔组织构成
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【简答题】Everyone's path to success is different. For some, it's mostly straight and smooth. Others meet more twists, turns, and bumps along the way. So what were highly successful people doing at age 25? 1. P...
查看完整题目与答案
【简答题】1 “I will think of it.” It is easy to say this, but do you know what great things have come from thinking? Though we can not see, or hear, or feel our thoughts, they have great power( 力量 )! 2 Isaac Ne...
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【单选题】—What is your father's brother? —He is _____. [     ]
A.
a teacher
B.
fine
C.
tall
D.
doing his homework
查看完整题目与答案
【简答题】Fill in the blank in each of the following sentences with a suitable preposition or adverb. 1. Speeches distinguish human beings __________ animals. 2. The idle son gives himself no concern __________...
查看完整题目与答案
【单选题】人体血浆最重要的抗酸成分是( )
A.
H 2 CO 3
B.
HCO 3 -
C.
H +
D.
OH -
查看完整题目与答案
【简答题】读短文回答问题。 He is John, his father is a driver, they usually go out in his father's car on Sundays. Sometimes they go swimming. Sometimes they go to see his uncle. His uncle is very good at fishing. He c...
查看完整题目与答案
【简答题】根据首字母或汉语提示写单词，完成句子。 1. My a_____ is my father's sister. 2. E_____ me, Paul. Are those your parents? 3. —How do you s_____ it? —H-E-R． 4. My pencil caseis in my b_____ . 5. —What c_____ is your pen? —l...
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【单选题】Our father's health is what matters, and the cost of his treatment is of ( ) importance.
A.
secondary
B.
modify
C.
cling
D.
delegate
查看完整题目与答案
相关题目：
【单选题】我国佛光出现的次数最多,也最精彩的是( )
A.
泰山
B.
黄山
C.
华山
D.
峨眉山
查看完整题目与答案
【单选题】眼球血管膜( )
A.
位于眼球最外层
B.
位于眼球最内层
C.
富有神经、血管和色素细胞
D.
由前向后分为虹膜、睫状体、脉络膜
E.
由疏松结缔组织构成
查看完整题目与答案
【简答题】Everyone's path to success is different. For some, it's mostly straight and smooth. Others meet more twists, turns, and bumps along the way. So what were highly successful people doing at age 25? 1. P...
查看完整题目与答案
【简答题】1 “I will think of it.” It is easy to say this, but do you know what great things have come from thinking? Though we can not see, or hear, or feel our thoughts, they have great power( 力量 )! 2 Isaac Ne...
查看完整题目与答案
【单选题】—What is your father's brother? —He is _____. [     ]
A.
a teacher
B.
fine
C.
tall
D.
doing his homework
查看完整题目与答案
【简答题】Fill in the blank in each of the following sentences with a suitable preposition or adverb. 1. Speeches distinguish human beings __________ animals. 2. The idle son gives himself no concern __________...
查看完整题目与答案
【单选题】人体血浆最重要的抗酸成分是( )
A.
H 2 CO 3
B.
HCO 3 -
C.
H +
D.
OH -
查看完整题目与答案
【简答题】读短文回答问题。 He is John, his father is a driver, they usually go out in his father's car on Sundays. Sometimes they go swimming. Sometimes they go to see his uncle. His uncle is very good at fishing. He c...
查看完整题目与答案
【简答题】根据首字母或汉语提示写单词，完成句子。 1. My a_____ is my father's sister. 2. E_____ me, Paul. Are those your parents? 3. —How do you s_____ it? —H-E-R． 4. My pencil caseis in my b_____ . 5. —What c_____ is your pen? —l...
查看完整题目与答案
【单选题】Our father's health is what matters, and the cost of his treatment is of ( ) importance.
A.
secondary
B.
modify
C.
cling
D.
delegate
查看完整题目与答案
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