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【单选题】
尿黑酸症是因为缺乏( )
A.
苯丙氨酸羟化酶
B.
尿黑酸氧化酶
C.
酪氨酸酶
D.
转氨酶
E.
色氨酸加氧酶
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参考答案:
举一反三
【判断题】《茶叶卫生标准》规定茶叶中DDT的含量不能超过0.2mg/kg。
A.
正确
B.
错误
【单选题】She listened carefully ______ she might understand what the speaker said exactly.
A.
so as to        
B.
in case            
C.
in order to        
D.
in order that
【单选题】She listened with a________expression on her face,which suggested she didn’t completely understand.
A.
puzzling
B.
frightened
C.
frightening
D.
puzzled
【单选题】《茶叶卫生标准》规定茶叶( )的含量不能超过0.2mg/kg。
A.
DDT
B.
敌敌畏
C.
甲胺磷
D.
杀螟硫磷
【单选题】“以人为本”和“以受试者和服务对象为中心”体现的生命伦理原则是
A.
尊重原则
B.
有利原则
C.
不伤害原则
D.
公正原则
【单选题】The fact that she has been listened to _________her anxieties and dulls the pangs of negative feelings.
A.
relieve
B.
increases
C.
assuages
D.
heightens
【单选题】When I had a problem she listened to me and suggested solutions. She was really ________ .
A.
promising
B.
shocking
C.
understanding
D.
serious
【简答题】你对大学四年的学习有何计划?准备采取哪些措施去实施你的计划?
【单选题】She listened carefully ______ she might hear what the speaker said exactly.
A.
so as to        
B.
in case              
C.
in order to      
D.
in order that
【单选题】《茶叶卫生标准》规定茶叶中的铅含量不能超过()。
A.
2mg/kg
B.
3mg/kg
C.
5mg/kg
D.
6mg/kg
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