皮皮学，免费搜题
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【单选题】
设X线管的阳极倾角为θ,下列公式正确的是:A.
标称焦点=实际焦点 X cosθ
B.
标称焦点=实际焦点 X sinθ
C.
实际焦点=标称焦点 X sinθ
D.
实际焦点=标称焦点 X cosθ
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皮皮学刷刷变学霸
举一反三
【判断题】Nowadays, some airports offer self check-in with baggage service so that passengers with checked luggage can also check in by themselves.
A.
正确
B.
错误
【单选题】Airline Baggage Service Office handles the following EXCEPT________.
A.
lost baggage
B.
damaged baggag
C.
overweight baggage
D.
missing baggage
【简答题】: ◆ 行李提取区 ◆ 海关 ◆ declare ◆ baggage carousel ◆ 行李牌、行李领取证 ◆ baggage service ◆ customs declaration form
【简答题】实训:海运提单的缮制.doc
【简答题】实训三汇票缮制实训.doc
【单选题】No sooner they rushed out into the street.
A.
did they hear the news than
B.
did they hear the news when
C.
had they heard the news than
D.
had they heard the news when
【简答题】No sooner they rushed into the room.A. did
they hear the loud noise than B. did they hear the loud noise when C. had they heard the loud noise than D. had they heard the loud noise when
【简答题】实训十一 海运单证缮制.doc
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