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【单选题】
目前流行的物联网的概念,说明了计算机未来发展有 ( )的倾向.A.
巨型化
B.
智能化
C.
网络化
D.
微型化
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举一反三
【单选题】An export subsidy imposed by a large country can be more damaging to national welfare than an export subsidy imposed by a small country because:
A.
a. the production effect is necessarily larger for the large country.
B.
b. the consumption effect is necessarily larger for the large country.
C.
c. the terms of trade worsen for the large country but not for the small country.
D.
d. the net national gains of the large country are overshadowed by the net welfare loss of the world.
【单选题】听力原文：The national forestry industry has seen a large increase in the demand for lumber over the last 12 months. According to forestry statistics, revenues increased by 21 percent to $1.2 billion. The ...
A.
The shortage of workers in the industry.
B.
The elimination of forestry regulations.
C.
The increase in home construction.
D.
The addition of new technologies.
【单选题】What does the large star represent in the national flag?
A.
Communism
B.
Working class
C.
Soldier
D.
Army
【简答题】液体石蜡 或称石蜡油、白油、白矿油等,是一种无色、无臭、 的黏稠状液体,具有润滑性,可在皮肤上形成 ,对皮肤、毛发柔软效果好。其 及对微生物的稳定性均好,对皮肤无不良作用。液体石蜡在化妆品中应用广泛,需用量也很大,是发油、发蜡、发乳及膏霜和乳液制品的重要原料。
【简答题】下列哪个保护可以作为变压器的主保护?()A. 过电流保护 B. 过负荷保护 C. 瓦斯保护 D. 零序电流保护
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