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【简答题】
为什么说公共产品需求的垂直加总是一条“虚假的曲线”?与“搭便车”有怎样的关系?举例升生活中“搭便车”的例子。
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举一反三
【单选题】heart rate ____________
A.
relaxed
B.
accelerated
C.
increased
D.
lengthened
E.
reduced
F.
stopped momentarily
G.
widened
【单选题】Do employers in your country ____ workers for in juries suffered at their work?
A.
conform
B.
conflict
C.
compel
D.
compensate
【简答题】Do employers in your country ________ workers for in juries suffered at their work? A) conform B) conflict C) compel D) compensate
【简答题】Questions 26-27 Complete the formula for safe maximum heart rate. 26. ______-age—resting heart rate×27.______ + resting heart rate
【简答题】心率(heart rate)
【单选题】We're monitoring Mr. Brown's __________________________. ( = heart rate, blood pressure, etc.)
A.
vital signs
B.
vitality
C.
life line
D.
symptoms
【简答题】Breathing and heart rate are controlled by______.
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