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【单选题】
楼层客房布局图能明确标出 ( ), 以及酒店客房的总数量及每间客房的房间编号等,为客房设备维护保养提供第一手材料 。
A.
每间客房的分布情况、房间类型、功能设计
B.
每间客房类型、顾客类型、功能设计
C.
每间客房的分布情况、顾客类型、功能设计
D.
功能设计、房间类型、顾客类型
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参考答案:
举一反三
【简答题】耦合电感 L 1 = L 2 = 3H ,耦合因数 ,则互感 M 为 ( ) 。
【单选题】Writers paint pictures in words and use figurative languages to produce_______ in their description or narration.
A.
ideas
B.
meaning
C.
images
D.
conclusion
【单选题】English writers are more “direct” than Chinese writers means that ______.
A.
Chinese writers don’t express their points in writing
B.
English writers often state the main idea at the end of a paragraph
C.
Chinese writers often express their purpose when they start an essay
D.
English writers often place their central idea in the introductory paragraph
【单选题】English writers are more “direct” than Chinese writers means that ______.
A.
Chinese writers don’t express their points in writing
B.
English writers often state the main idea at the end of a paragraph
C.
English writers often place their central idea in the introductory paragraph
D.
Chinese writers often express their purpose when they start an essay
【单选题】已知两耦合电感L1=L2=6H,互感M=3H,则耦合系数k=( )。
A.
0.5
B.
2
C.
3
D.
6
【多选题】下列哪些元件是该回路的组成元件?
A.
两位五通电磁换向阀
B.
与阀
C.
两位三通手动换向阀
D.
或阀
E.
快速排气阀
F.
两位五通双气控换向阀
G.
气动三联件
【简答题】已知:a 2 ﹣b 2 =(a﹣b)(a+b);a 3 ﹣b 3 =(a﹣b)(a 2 +ab+b 2 );a 4 ﹣b 4 =(a﹣b)(a 3 +a 2 b+ab 2 +b 3 );按此规律,则: (1)a 5 ﹣b 5 =(a﹣b)( _________ ); (2)若a﹣ =2,你能根据上述规律求出代数式a 3 ﹣ 的值吗?
【多选题】下列哪些是该回路的组成元件()。
A.
油泵
B.
三位四通电磁换向阀(y型)
C.
两位四通电磁换向阀
D.
压力继电器
E.
溢流阀
F.
单作用缸
【单选题】Roald Dahl was a great children's writer. His dark past helped him paint a picture ________ was different to most other writers.
A.
that
B.
who
C.
/
D.
whom
【简答题】先化简,再求值: (1)(4a 2 -3a)-(2a 2 +a-1)+(2-a 2 +4a),其中a=2. (2)已知A=3a 2 -5ab-b 2 ,B=-2a 2 +3ab+b 2 ,其中a=-1, b= 2 3 ,求-3(A-B)+2(B+3A)的值.
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