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【简答题】
下午,他捡了好几样东西 两条长桌,四个椅子,一幅香炉烛台,一杆台秤。
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【简答题】European Union
【单选题】Which device has the European Union used to equalize farm-product import prices with politically determined European Union prices, regardless of shifts in world prices?
A.
Variable levies
B.
Import quotas
C.
Import subsidies
D.
Domestic content regulations
【简答题】客车故障轨旁图像检测系统是利用()、计算机()技术、对运行客车()、()、()、等客车车体()、()、()安全关键部位进行动态图像采集的系统
【简答题】European Union
【简答题】European Union
【单选题】The European Union:
A.
Has achieved the reality of a single currency and a regional central bank
B.
Has eliminated all trade barriers among member countries
C.
Subjects member nations to quotas on the manufacture and shipment of high-quality, low-cost goods
D.
Imposes duties on member nations for the manufacture and shipment of high-quality, low-cost goods
【单选题】当前精密加工所达到的精度是( )。 A . 10 ~ 1μm ; B . 1 ~ 0.1μm ; C . 0.1 ~ 0.01μm ; D . 0.01 ~ 0.001μm
A.
10 ～ 1μm
B.
1 ～ 0.1μm
C.
0.1 ～ 0.01μm
D.
0.01 ～ 0.001μm
【简答题】一般规定,电动机的运行电压不能高于或低于额定值的 _____%
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