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【简答题】
(本题12分)设等差数列第1024,第25-21 (1)求这个数列的通项公式;(2)设为其前n项和,求使取最大值时的n值。
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【简答题】某公司与某外商洽谈进易一宗,经往来电传磋商,就合同的主要条件全部达成协议,但在最后一次我方公司所发的表示接受的电传中列有“以签订确认书为准”。事后,对方拟就合同草稿,要我方公司确认,但由于对某些条款尚待进一步磋商,故未及时给予答复。不久,该商品的国际市场价格下跌,外商催我方公司开立信用证,我方公司以合同尚未有效成立为由拒绝开证,试分析我方公司的做法是否合理。
【单选题】Suppose the numbers 7, 5, 1, 8, 3, 6, 0, 9, 4, 2 are inserted in that order into an initially empty Binary Search Tree. The Binary Search Tree uses the usual ordering on natural numbers. What is the i...
A.
7 5 1 0 3 2 4 6 8 9
B.
0 2 4 3 1 6 5 9 8 7
C.
0 1 2 3 4 5 6 7 8 9
D.
9 8 6 4 2 3 0 1 5 7
【单选题】Refer to Exhibit 4. Suppose the economy is operating in a recession such as point B in Exhibit 4. If policymakers wished to move output to its long-run natural rate, they should attempt to
A.
shift aggregate demand to the left.
B.
shift short-run aggregate supply to the left.
C.
shift aggregate demand to the right.
D.
shift short-run aggregate supply to the right.
【单选题】Refer to Exhibit 4. Suppose the economy is operating in a recession such as point B in Exhibit 4. If policymakers allow the economy to adjust to the long-run natural rate on its own,
A.
people will reduce their price expectations and the short-run aggregate supply will shift right.
B.
people will raise their price expectations and aggregate demand will shift left.
C.
people will raise their price expectations and the short-run aggregate supply will shift left.
D.
people will reduce their price expectations and aggregate demand will shift right.
【简答题】某公司与某外商洽谈进易一宗,经往来电传磋商,就合同的主要条件全部达成协议,但在最后一次我方所发的表示接受的电传中列有“以签订确认书为准”。事后对方拟就合同草稿,要我方确认,但由于对某些条款的措辞尚待进一步研究。故未及时给予答复。不久,该商品的国际市场价格下跌,外商催我方开立信用证,我方以合同尚未有效成立为由拒绝开证。试分析我方的做法是否有理。
【单选题】Suppose that the unemployment rate equals 4.5 percent and that the natural unemployment rate is 5.5 percent. We can conclude that
A.
the output gap is negative.
B.
the output gap equals zero.
C.
the output gap is positive.
D.
we have mismeasured the natural unemployment rate.
【简答题】某公司与某外商洽谈进易一宗,经往来电传磋商,就合同的主要条件全部达成协议,但在最后一次我方公司所发的表示接受的电传中列有“以签订确认书为准”。事后,对方拟就合同草稿,要我方公司确认,但由于对某些条款尚待进一步磋商,故未及时给予答复。不久,该商品的国际市场价格下跌,外商催我方公司开立信用证,我方公司以合同尚未有效成立为由拒绝开证,试分析我方公司的做法是否合理。
【简答题】我某公司与某外商洽谈进易一宗,经往来电传磋商,就合同的主要条件全部达成协议,但在最后一次我方所发的表示接受的传真中列有“以签订确认书为准”。事后对方拟就合同草稿,要我方确认,但由于对某些条款的措辞尚待进一步研究,故未及时给予答复。不久,该商品的国际市场价格下跌,外商催我开立信用证,我方以合同尚未有效成立为由拒绝开证,试分析,我方的做法是否有理,为什么?
【单选题】Suppose the expected inflation rate is 12 percent and the unemployment rate is 5 percent. If the expected inflation rate increases to 13 percent,
A.
the short-run Phillips curve will shift upward.
B.
the short-run Phillips curve will shift downward.
C.
there will be a movement along the short-run Phillips curve.
D.
the natural unemployment rate will rise.
【简答题】某公司与某外商洽谈进易一宗,经往来电传磋商,就合同的主要条件全部达成协议,但在最后一次我方所发的表示接受的电传中列有“以签订确认书为准”。事后对方拟就合同草稿,要我方确认,但由于对某些条款的措辞尚待进一步研究,故未及时给予答复。不久,该商品的国际市场价格下跌,外商催我方开立信用证,我方以合同尚未有效成立为由拒绝开证。试分析我方的做法是否合理。
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