皮皮学，免费搜题
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【单选题】
鼻导管给氧,氧流量3升/分,氧浓度为
A.
25%
B.
29%
C.
33%
D.
37%
E.
41%
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【单选题】1994年，美国教育传播与技术协会（简称AECT）出版了西尔斯（Seels）与李奇（Richey）合写的专著（ ），书中提出了教育技术的定义。
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【单选题】身体素质的基础是
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【单选题】如果将一矩形纸片沿一条直线剪成两个多边形 , 那么这两个多边形的内角和之和不可能是 ( )
A.
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B.
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【单选题】What’s Dr. Siegel’s concern?
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B.
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【单选题】Woman: What do you think of Dr. White's chemistry class?Man: Now there's a teacher who knows her subject!Question: What does the man mean?
A.
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B.
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C.
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D.
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【单选题】What's the reason for Dr. Jeol Hiderbrand's interest in chemistry?
A.
His chemistry teacher was a great teacher.
B.
His parents taught him chemistry when he was very young.
C.
He was born in a time young people had greater freedom to decide what they wanted to do.
D.
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【单选题】营销策划第一步必须是明确营销策划主题，营销策划主题确定一般经过4个阶段，第2阶段是（  ）
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查看完整题目与答案
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B.
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A.
Dr. White teaches many different subjects.
B.
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A.
His chemistry teacher was a great teacher.
B.
His parents taught him chemistry when he was very young.
C.
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D.
His talents were greater than his chemistry teacher.
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