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【判断题】
Z535型钻床的照明线路由变压器TC供给24V安全电压，SA为接通或断开照明的开关。A.
正确
B.
错误
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举一反三
【单选题】The combined sales of the 100 largest foreign investing companies in the U. S. increased by a 40% in the two years between 1977 and 1979, and the number has continued to increase steadily. In 1980 Sou...
A.
H.K.
B.
U.K.
C.
Latin America
D.
South Africa
【单选题】In recent decades Americans have increased their purchase of stocks of foreign-based companies. The Americans who have bought these stocks were engaged in
A.
foreign portfolio investment.
B.
indirect domestic investment.
C.
foreign direct investment.
D.
foreign indirect investment.
【简答题】世界旅游组织将全球划分为六大旅游区,即 、 、非洲旅游区、东亚太旅游区、中东旅游区和南亚旅游区。
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