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【简答题】
Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate(使发生联系) red with a strong feeling like 46 . Red is used for signs of 47 , such as STOP signs and fire engines. Orange is the bright, warm color of 48  in autumn. People say orange is a   49 color. They associate orange with happiness. Yellow is the color of __50__ . People say it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in __51__ . People say it is a refreshing color. In general, people __52__ two groups of colors: warm colors and cool colors. The warm colors are red, orange and __53__ . Where there are warm color and a lot of light, people usually want to be __54__ . Those who like to be with __55 _ like red. The cool colors are __56_ and blue. Where are these colors, people are usually worried. Some scientists say that time seems to __57 _ more slowly in a room with warm colors. They suggest that a warm color is a good __58_ for a living room or a __59_ . People who are having a rest or are eating do not want time to pass quickly. __60 colors are better for some offices if the people working there want time to pass quickly. 小题1: A.sadness B.anger C.administration D.smile 小题2: A.roads B.ways C.danger D.places 小题3: A.land B.leaves C.grass D.mountains 小题4: A.lively B.dark C.noisy D.frightening 小题5: A.moonlight B.light C.sunlight D.stars 小题6: A.summer B.spring C.autumn D.winter 小题7: A.speak B.say C.talk about D.tell 小题8: A.green B.yellow C.white D.gray 小题9: A.calm B.sleepy C.active D.helpful 小题10: A.the other B.another C.other one D.others 小题11: A.black B.green C.golden D.yellow 小题12: A.go round B.go by C.go off D.go along 小题13: A.one B.way C.fact D.matter 小题14: A.factory B.classroom C.restaurant D.hospital 小题15: A.Different B.Cool C.Warm D.All
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【简答题】设二元函数z=sinxy,则全微分dz=_________.
【多选题】焊条由焊芯和药皮两部分组成,下列各个选项中属于焊芯作用的是( )
A.
冶金作用
B.
填充金属
C.
传导电流
D.
稳定电弧
【单选题】设二元函数z=sinxy,则dz=( )
A.
sinxy(xdx+ydy)
B.
cosxy(ydx+xdy)
C.
cosxy(ydx-xdy)
D.
-cosxy(xdx+ydy)
【单选题】is a hollow tube that from the steering wheel through the floorboard.
A.
Steering gear
B.
Steering knuckle
C.
Steering column
D.
Steering shock absorber
【判断题】初唐四杰:王勃、孟浩然、卢照邻、骆宾王
A.
正确
B.
错误
【单选题】在物理存储器层次结构中,下列哪一个存储设备是联机存储?
A.
高速缓存
B.
主存储器
C.
第二级存储器
D.
第三级存储器
【单选题】The “Port-Off-Stbd” selector switch on an autopilot steering stand is used to ______.
A.
change from hand electric steering to automatic gyro
B.
change over one steering system to the other
C.
change over hand electric steering to non-follow-up
D.
change over the port to the starboard bow thruster
【多选题】电焊条由焊芯和药皮两部分组成。药皮的主要作用有()。
A.
机械保护作用
B.
冶金处理作用
C.
改善焊接工艺性能
【单选题】一个文件系统是在一个存储设备上存储和组织数据的( ),这个存储设备可以是闪存、DVD和硬盘。
A.
概念
B.
格式
C.
方法
D.
原则
【多选题】焊条由焊芯和药皮两部分组成,一般来说,焊芯具有焊缝的基本化学成分,而药皮则有()的作用。
A.
提高焊接电弧稳定性
B.
保护熔池金属
C.
过渡合金元素
D.
改善焊接工艺性及提高焊接生产效率
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