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【单选题】
奥姆斯特德景观设计原则除了在非常有限范围内,尽可能避免
A.
规则式
B.
自然式
C.
混合式
D.
复合式
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【单选题】The banking system developed fast in the late 19th century mainly due to ________.
A.
overseas competition
B.
matured home market
C.
an imbalance in trade
D.
growth in financial demand
【简答题】Due to the fact that light travels______(fast)than sound, lightning is seen before thunder is heard.
【判断题】Fast fading is due to scattering of the signal by object near transmitter
A.
正确
B.
错误
【单选题】Shanghai' s car rental industry is growing so fast mainly due to ________.
A.
better cars supplied by producers
B.
fast service offered by car rental firms
C.
the increasing number of white-collar employees
D.
people's growing interest in traveling during holidays
【单选题】What point does Ricky Bland make about the fast-food industry?
A.
Its attitude to staff development is often misunderstood.
B.
It has difficulty recruiting suitable staff.
C.
It invests more in technology than in staff.
【单选题】下列关于空气净化的叙述正确的是
A.
局部净化是彻底消除人为污染,降低生产成本的有效方法
B.
按照要求一般将生产厂区划分为生产区、控制区、洁净区
C.
洁净级别从100到100000级,尘粒数逐渐减小
D.
净化度标准只考虑尘粒个数,不考虑尘粒大小
E.
只要进入的空气保证洁净,层流和紊流都可以达到超净目的
【单选题】下列有关空气污染的叙述,正确的是( ) 。
A.
PM2.5是直径在2.5微米以下的可吸入颗粒物
B.
空气质量级别越高,空气质量越好
C.
臭氧层能吸收外太空射线,臭氧不是污染物
D.
二氧化碳不是有害气体,没有计入空气污染指数的项目
【简答题】A.due to B.due in C.due D.due of
【判断题】The rapidfluctuations in the spatial and temporal characteristics caused by local multipath areknown as fast fading (short-term fading due to fast spatial variations). Distances ofabout half a wavelen...
A.
正确
B.
错误
【判断题】在绝对位置控制时,在不拔下反馈插头的情况下,轴脱开功能会造成原点丢失,产生ALM300。( )
A.
正确
B.
错误
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