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【简答题】
（1）①6 3 +7 3 +8 3 +9 3 +10 3 +11 3 +12 3 +13 3 +14 3 +15 3 ②（1+ 1 2 + 1 3 + 1 4 ）×（ 1 2 + 1 3 + 1 4 + 1 5 ）-（1+ 1 2 + 1 3 + 1 4 + 1 5 ）×（ 1 2 + 1 3 + 1 4 ） ③（ 1 2 + 1 3 + 1 4 +…+ 1 20 ）+（ 2 3 + 2 4 + 2 5 +…+ 2 20 ）+（ 3 4 + 3 5 +…+ 3 20 ）+…+（ 18 19 + 18 20 ）+ 19 20 （2）在自然数1～60中找出8个不同的数，使这8个数的倒数之和等于1． （3） 3 2 - 5 6 + 7 12 - 9 20 + 11 30 - 13 42 + 15 56 ．
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举一反三
【单选题】Macroeconomics is concerned primarily with
A.
the economy as a whole.
B.
the operation of a particular firm.
C.
a detailed examination of how price and output decisions are made in specific markets.
D.
individual consumer behavior.
【单选题】Macroeconomics is concerned with
A.
individual consumers.
B.
government decision making concerning farm price supports.
C.
economy-wide variables.
D.
the effects on Ford Motor of a strike by the United Auto Workers.
【单选题】Macroeconomics is:
A.
based on microeconomic foundations.
B.
completely separate from microeconomics.
C.
explicitly based on microeconomic behavior.
D.
a subsidiary branch of microeconomics.
【单选题】某点的绝对压强 p abs =35kPa ,当地大气压 p a =50kPa ,则真空压强 p v = ( ) kPa 。
A.
15
B.
35
C.
50
D.
85
【单选题】Macroeconomics is the study of
A.
individual decisionmakers.
B.
economic history.
C.
economy-wide phenomena.
D.
how firms maximize profit.
【单选题】Macroeconomics is the study of the:
A.
activities of individual units of the economy.
B.
decision making by households and firms.
C.
economy as a whole.
D.
interaction of firms and households in the marketplace.
【单选题】Macroeconomics is the study of the:
A.
activities of individual units of the economy.
B.
decision making by households and firms.
C.
economy as a whole.
D.
interaction of firms and household in the marketplace.
【单选题】中药剂工作人员在药房工作中，应掌握常用药物的功能.主治.要求能判定处方药物的运用正确与否，这是中药剂药师调剂处方时应负的法律责任。
甘草、大枣共同具有（）
A.
补中益气又能缓和药性
B.
补中益气又能养血安神
C.
补中益气又能清热解毒
D.
补中益气又能调和营卫
E.
补中益气又能清除肺热
F.
补中益气又能清热凉血
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