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【单选题】
某质点的运动方程为x=3t-5t3+6(SI)，则该质点作A.
变加速直线运动，加速度沿 X 轴负方向 .
B.
变加速直线运动，加速度沿 X 轴正方向 .
C.
匀加速直线运动，加速度沿 X 轴负方向 .
D.
匀加速直线运动，加速度沿 X 轴正方向.
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举一反三
【单选题】The company should ensure that( )documents are promptly removed.
A.
absolute
B.
updated
C.
outdated
D.
new
【简答题】The evidence documents of force majeure should be issued by the local ______.
【单选题】______ should be consulted to obtain the information concerning port documents required by the port Authority．
A.
Admiralty Notices to Mariners
B.
SOLAS
C.
Admiralty Sailing Directions
D.
Guide to Port Entry
【单选题】In documentary collection, the exporters present the documents to______after the goods have been shipped.
A.
the remitting bank
B.
the collecting bank
C.
the reimbursing bank
D.
the opening bank
【简答题】How much should be paid for every set of the bidding documents? ___________________________or US ＄ 96.
【简答题】How much should be paid for the bidding documents?
【判断题】The applicant should carefully prepare the documents before application.()
A.
正确
B.
错误
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