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【单选题】
评定一个药物的安全性主要取决于( )
A.
病人的耐受性
B.
LD 50
C.
ED 50
D.
治疗指数
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A.
  pay
B.
  catch
C.
  give
D.
  take
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【单选题】My teacher's voice _____sweet,We all like her songs. [     ]
A.
feels
B.
smells
C.
looks
D.
sounds
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【单选题】The smile on my teacher's face showed that she was with me. [     ]
A.
sad
B.
pleased
C.
worried
D.
angry
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【单选题】I regret ____ my teacher's advice, otherwise I would have succeeded in passing the exam. [     ]
A.
not to take
B.
not taking
C.
not to have taken
D.
having not taken
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【单选题】My teacher's voice sweet. We all like her singing. [     ]
A.
feels
B.
smells
C.
looks
D.
sounds
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【单选题】I will never forget my teacher's advice: 'As long as you can affect _____ life of your child in an active way, you've been _____ success.' [     ]
A.
/ ; the
B.
a; /
C.
a; the
D.
the; a
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【单选题】2016 年 9 月 4 日至 5 日,二十国集团( G20 )领导人第十一次峰会 在 举行
A.
北京
B.
上海
C.
杭州
D.
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A.
正确
B.
错误
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【单选题】My teacher's rich knowledge of science ______ my decision ______ study science.
A.
influenced；to
B.
influenced；on
C.
has influenced；with
D.
influences；on
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【简答题】生物多样性的概念、层次及作用是什么?
查看完整题目与答案
【单选题】—I did my homework quickly and correctly to _______ my teacher's attention. [     ]
A.
  pay
B.
  catch
C.
  give
D.
  take
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【单选题】My teacher's voice _____sweet,We all like her songs. [     ]
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【单选题】The smile on my teacher's face showed that she was with me. [     ]
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sad
B.
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D.
angry
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【单选题】I regret ____ my teacher's advice, otherwise I would have succeeded in passing the exam. [     ]
A.
not to take
B.
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【单选题】My teacher's voice sweet. We all like her singing. [     ]
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feels
B.
smells
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looks
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【单选题】I will never forget my teacher's advice: 'As long as you can affect _____ life of your child in an active way, you've been _____ success.' [     ]
A.
/ ; the
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北京
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【判断题】2016年二十国集团(G20)峰会在上海举办,通过了《二十国集团反腐败追逃追赃高级原则》等文件。
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B.
错误
查看完整题目与答案
【单选题】My teacher's rich knowledge of science ______ my decision ______ study science.
A.
influenced；to
B.
influenced；on
C.
has influenced；with
D.
influences；on
查看完整题目与答案