题目内容

一个经济周期是从增长到(波峰；波谷；经济衰退)，然后再到(波峰；波谷；经济衰退)。实际GDP的下降持续至少两个月是一次。自1854年以来，一次经济增长的平均长度是(6；35；120)个月，一次经济衰退的平均长度是(2；18；61)个月。自第二次世界大战以来，平均经济增长期(缩短；延长)，同时平均经济衰退期(缩短；延长)。

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The operation of _______two alternators requires the voltages to be equal and also in phase

A. paralleling
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C. running
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提高联邦基金率会使得总需求曲线向移动，因此实际GDP，同时价格水平。

A. 向右；增加；上升
B. 向左；减少；上升
C. 向右；增加；下降
D. 向左；减少；下降
E. 向左；增加；上升

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Air cocks, usually positioned at the_______in a circulating system, is used to get rid of

A. bending joint
B. expansion tank
C. weld
D. the highest point

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The core item in the Oil Record Book Part I is , and its main content is.

A. Item A, BALLAST OR CLEANING OF FUEL OIL TANKS
B. Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OIL TANKS REFERRED TO UNDER SECTION(A)
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D. Item H, BUNKERING OF FUEL OIL

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The operation of _______two alternators requires the voltages to be equal and also in phase

提高联邦基金率会使得总需求曲线向________移动，因此实际GDP________，同时价格水平________。

Air cocks, usually positioned at the_______in a circulating system, is used to get rid of

The core item in the Oil Record Book Part I is ____, and its main content is____.

提高联邦基金率会使得总需求曲线向移动，因此实际GDP，同时价格水平。

The core item in the Oil Record Book Part I is , and its main content is.