皮皮学，免费搜题
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搜题
【多选题】
我能为您效劳吗？ 我想要订一张明天从武汉去上海的高铁票。 您准备什么时候出发？ 车票多少钱？ 请到4号窗口购买学生票。 到上海的高铁票有售。 对不起，二等座没票了，其他票可以吗？ 去武汉的坐票都卖完了。 您要站票吗？ 能把学生证给我看一下吗？A.
May I help you?
B.
I’d like to book a high-speed train ticket from Wuhan to Shanghai for tomorrow.
C.
hen will you leave?
D.
What’s the fare?/How much is the fare?/How much is it?/How much shall I pay for the ticket?
E.
Please go to Window No. 4 for students’ tickets.
F.
High-speed train ticket to Shanghai is available.
G.
Sorry, there is no economy-class ticket. Would you take others?
H.
All seat tickets for Wuhan are sold out.
I.
Would you have a standing-room-only ticket instead?
J.
May I have your Student’s ID card?
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举一反三
【单选题】What is Omni-directional antenna?
A.
An antenna which is capable of line-of-sight communication with a satellite without requiring any pointing
B.
Generally it is used on an INMARSAT-M MES
C.
Generally it is used on an INMARSAT-F MES
D.
This is a kind of directional antenna
【单选题】A parabolic dish antenna is a(n) _________ antenna.
A.
unidirectional
B.
horn
C.
omnidirectional
D.
bidirectional
【单选题】What might be the obstacles for transmitting antenna and receiver antenna to get connected?
A.
Deep oceans
B.
High mountains.
C.
Long rivers.
D.
Huts.
【简答题】天线色素(antenna pigment)
【单选题】Antenna gain is obtained by...? （）
A.
A power amplifier in the antenna system
B.
Concentration of radiation
C.
Highly effective antenna cables
D.
Good SWR (Standing Wave Ratio)
E.
A spherical radiation pattern
【单选题】What is omni-directional antenna?
A.
An antenna which is capable of line-of-sight communication with a satellite without requiring any pointing.
B.
Generally it is used on an Inmarsat-B MES.
C.
Generally it is used on an Inmarsat-F MES.
D.
This is a kind of directional antenna.
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