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【单选题】
A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）A.
Multimeter
B.
Oscilloscope
C.
Cable tester
D.
Power supply tester
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举一反三
【多选题】第二次世界大战后，西方国家跨国公司迅速发展是由于
A.
生产力发展的需要
B.
国内外市场竞争的需要
C.
资本输出的需要
D.
争夺国际垄断地位的需要
E.
攫取高额垄断利润的需要
【简答题】板框过滤机主要用于培养基制备的过滤及霉菌、放线菌、酵母菌和细菌等多种发酵液的固液分离,比较适合固体含量()的悬浮液的分离
【简答题】简述喷雾干燥法的原理是什么？其优缺点有哪些？
【简答题】改错：Exercise is one of the few factors with a positive role in long term maintenance of body weight.Exercise is one of the few factors with a positive role in long term maintenance of body weight. Unfo...
【单选题】关于干燥方法错误的是( )
A.
沸腾干燥可用来干燥液态物料
B.
喷雾干燥的缺点是能耗高，有黏壁现象
C.
冷冻干燥产品外观优良、易于溶解，可以长期保存，但设备成本过大
D.
微波干燥的特点是穿透力强，加热效率高，有杀虫灭菌效果
【简答题】Car companies should help people better understand electric cars. fuel prices are high, more people will buy electric cars if they know that electric cars can save them money in the long term.
【单选题】The slowdown in the regional economy is likely to people from making large deals in the long term.
A.
reduce
B.
discourage
C.
decrease
D.
disturb
【单选题】In one year, you meet 52 people who are each unemployed for one week and eight people who are each unemployed for the whole year. What percentage of the unemployment spells you encountered was short t...
A.
52% was short term; 13.3% was long term
B.
52% was short term; 88.9% was long term
C.
86.7% was short term; 13.3 was long term
D.
86.7% was short term; 88.9 was long term
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