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【简答题】
某信号兵用红、黄、面旗子从上到下挂在竖直的旗杆上表示信号,每次可以挂一面、二面或三面,并且不同的顺序表示不同的信号,一共可以表示多少种信号?
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参考答案:
举一反三
【单选题】one of the distinct features of the Elizabeth time is ________.
A.
the flourishing of drama
B.
the popularity of the realistic novel
C.
the domination of the classical poetry
D.
the close-down of all the theatres
【单选题】One distinct advantage of flash type evaporators, as compared to most other evaporators, is that in a flash evaporator _____.
A.
high temperature distillate can be re- circulated to induce additional flashing
B.
scale formation is not a severe problem
C.
cold shocking is more effective in removing scale
D.
water purity is greatly increased at high capacity
【判断题】The poets of the second generation of British Romanticism described the beautiful scenes and the country people of that area in their writings.
A.
正确
B.
错误
【单选题】The publication of Lyrical Ballads marks the beginning of the British Romanticism, whose authors are ______ and Samuel Taylor Coleridge.
A.
William Blake
B.
William Wordsworth
C.
Walter Scott
D.
Jane Austin
【简答题】钢轨的类型有哪些?钢轨分级使用的含义是什么?
【单选题】在系统设计阶段,用户界面设计属于( )
A.
逻辑设计和总体设计
B.
逻辑设计和详细设计
C.
物理设计和总体设计
D.
物理设计和详细设计
【单选题】在系统设计阶段,用户界面设计属于( )
A.
逻辑设计和总体设计
B.
逻辑设计和详细设计
C.
物理设计和总体设计
D.
物理设计和详细设计
【单选题】Small planes have one distinct difference from ______ vehicles: they do not need to have anything built on the ground before they can begin work.
A.
all the
B.
all other
C.
other
D.
the others
【多选题】钢轨的类型有( )?
A.
75kg/m
B.
60kg/m
C.
50kg/m
D.
40kg/m
【多选题】钢轨的类型有( )
A.
槽型钢轨
B.
钢轨
C.
平底钢轨
D.
其他类型
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