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【单选题】
动力粘度的单位是()A.
秒
B.
厘斯
C.
无单位
D.
厘泊
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举一反三
【单选题】— What happened to the heroes at the end of the book? — All of them _____ escape from the enemy's prison and began their new life. [ ]
A.
tried to
B.
managed to
C.
wanted to
D.
did their best
【单选题】What is the main purpose of DGPS?
A.
To reduce operational cost
B.
To simplify operational process
C.
To decrease positioning accuracy
D.
To improve positioning accuracy
【简答题】某山岭重丘区四级公路,一弯道半径 R=18m ,设计纵坡为 8.9% ,试问这一段纵坡是否满足标准要求?若不能满足要求,可采取什么办法予以弥补?
【简答题】What does the customer collect before he or she leaves?（ ） A．The bag C．The printed slip C．The metal basket D．The cash
【单选题】What will they do next?
A.
They'll fight with each other.
B.
They'll further negotiate the prices.
C.
They'll sign the contract.
D.
They'll exchange business cards.
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