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【单选题】
听力原文:W: My dear, what a charming restaurant! It has such an old country air about it. M: Yes, it's one of the best Italian restaurants in town. The decor is pleasant, the music good, and the food delicious. W: Is that the owner's wife over there? She's dressed in the very latest European fashion. M: She is the owner. She and her family go to Italy every year to keep in touch with the trends in fashion and food, and in decor too. But she doesn't actually change the food or decor here very much. Constant change would be upsetting to the customers. Be sides, the customers expect certain characteristics in an Italian restaurant, and she can't change those, or the restaurant would Jose some of its appeal to the customers. W: Like the red and white tablecloths, you mean? M: Exactly. And the music. But, however conservative she is in the restaurant, she always wears the latest style. in clothing. The latest dignified style, of course. W: Yes, Well, what shall we order? M: I'd suggest an appetizer, and then I% having either seafood or chicken, since I had red meat last night. W: I think I'd like to try this flounder dish. M: Good. Shall we order wine? W: Yes, let's have a white wine. M: OK. I'll get this chicken dish. Would you like to have pastry and coffee for dessert? W: Yes, if I'm not too full by that time. Let's hold off ordering the dessert until later. (20)
A.
A seafood restaurant.
B.
A very fancy restaurant.
C.
An exclusive restaurant.
D.
An Italian restaurant.
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参考答案:
举一反三
【单选题】( )是泵进油口处的压力。
A.
工作压力
B.
吸入压力
C.
额定压力
D.
安全压力
【单选题】减压阀控制的是( )处的压力。
A.
进油口
B.
出油口
C.
进油口和出油口
D.
工作泵
【单选题】对涂漆表面进行渗透检测的第一步是
A.
将渗透液喷到表面上
B.
将漆层完全去除
C.
用洗涤剂彻底清洗表面
D.
用钢丝刷刷表面,使光滑的漆层变得粗糙
【单选题】油层能量低、气量过大或当泵吸入口处的压力低于()时,进入泵内的将是油气混合物,相对地减少了进入泵内油的体积,降低了泵效甚至造成气锁现象。
A.
地层压力
B.
流动压力
C.
饱和压力
D.
井口油压
【单选题】使用PT泵系统的发动机,每个喷油器进油口处的量孔断面尺寸固定,每缸喷入燃油的计量时间在某一转速下也是相对固定的,这时只要改变()的燃油压力就可调节喷油量。
A.
喷油器进油口
B.
喷油器出油口
C.
PT泵进油口
D.
齿轮泵进油口
【单选题】三人制篮球最开始起源于 ?
A.
美国
B.
中国
C.
加拿大
D.
英国
【简答题】11g工作频段是2.4GHz,其中,常用的通道号是
【单选题】如图所示液压系统的液压泵在20°C时供给50L/min的液压油,液压油的运动粘度ν=200×10 m /s,密度ρ=900kg/m ,吸油管道内径d=30mm,管长l=4m,泵进油口截面在液压油自由表面下0.8m处,如果局部压力损失忽略不计,试计算液压泵进油口处的绝对压力是多少?
A.
59000Pa
B.
63000Pa
C.
69000Pa
D.
72000Pa
【单选题】对涂漆表面进行渗透检测的第一个步骤是()
A.
将渗透剂喷洒到表面上
B.
将漆层完全去除
C.
用洗涤剂彻底清洗表面
D.
用钢丝刷刷表面。使光滑的漆层变得粗糙
【单选题】对涂漆表面进行渗透检测的第一步是()。
A.
将渗透液细心地施加到所有表面上
B.
将漆层完全去除
C.
用洗涤剂彻底清洗表面
D.
用钢丝刷刷表面;使光滑的漆层变粗糙
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