军事、政治、后勤、装备军官每晋升（）指挥职务，应当经过相应的_爱下问搜题

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问题单项选择题

军事、政治、后勤、装备军官每晋升（）指挥职务，应当经过相应的院校或者其他训练机构培训。

A、一级

B、二级

C、三级

D、四级

答案

参考答案：A

单项选择题

D

Any mistake made in the printing of a stamp raises its value. A mistake on one inexpensive postage stamp has made the stamp worth a million and a half times its original (本来的) value. The mistake was made more than a hundred years ago in the British colony (殖民地)of Mauritius, a small island in the Indian Ocean. In 1847 an order for stamps was sent to a London printer—Mauritius was to become the fourth country in the world to issue (发行) stamps.
Before the order was delivered(传达), a party was planned at Mauritius’Government House, and stamps were needed to send out the invitations. A local printer was told to copy the design for the stamps. He printed the words " Post Office " instead of " Post Paid " by mistake on the several hundred stamps that he printed.
Today there are only twenty-six of these misprinted stamps left—fourteen Onepenny Orangereds and twelve Twopenny Blues. Because of the Twopenny Blue’s rareness (稀少) and age, collectors have paid as much as $ 16800 for it.

$ 16800 is the collector’s value of ______.

A．the Onepenny Orange—Red

B．a correctly printed 1847 stamp

C．the Twopenny Blue

D．both A and C

单项选择题

在—个由居民、企业和政府构成的三部门经济模型中，下列恒等关系式正确的是（）.

A.储蓄＝净投资，政府支出＝政府税收

B.储蓄+折旧=总投资—政府财政盈余

C.储蓄+税收＝总投资+政府支出

D.储蓄+折旧＝净投资—政府财政盈余