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【判断题】
给继电器的线圈85、86侧通电、接地,结果能够听到开关30、87吸合的声音,说明继电器工作良好,无故障;以上描述是( )的。 C. 缺少条件、无法判断 D. 不确定A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】滚动轴承按其所承受的荷载形式可分为哪几类？
【单选题】The discovery of dinosaur fossil sites in Bolivia is exciting because of the following reasons EXCEPT that
A.
they are found in a continent other than Asia and North Continent.
B.
the largest dinosaurs in the world are found in this discovery.
C.
there are some unknown species of dinosaurs found this time.
D.
the dinosaurs were believed to be some of the last ones on earth.
【单选题】The word other in Paragraph 3 refers to ______.
A.
areas such as Peru and Brazil
B.
Argentina and Brazil
C.
Brazil, Chile, and other areas
D.
Argentina and Peru
【单选题】The passage is mostly about______.
A.
avalanches.
B.
glaciers.
C.
Peru.
D.
mountains.
【简答题】Compared with their displaced counterparts in Peru, the situation of the internally displaced persons in Colombia is ______.
【单选题】Bolivia, Peru, Ecuador, Columbia, and Venezuela are all members of _____. 玻利维亚、秘鲁、厄瓜多尔、哥伦比亚和委内瑞拉都是......的成员。
A.
Mercosur南方共同市场
B.
NAFTA北美自由贸易协定
C.
APEC亚太经贸合作组织
D.
the Andean Pact安第斯协定
【单选题】The discovery of dinosaur fossil sites in Bolivia is exciting because of the following reasons EXCEPT ______.
A.
they are found in continent other than Asia and North Continent
B.
the largest dinosaurs in the world are found in this discovery
C.
there are some unknown species of dinosaurs found this time
D.
the dinosaurs were believed to be some of the last ones on earth
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