皮皮学，免费搜题
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搜题
【单选题】
用显微镜油镜观察标本最合适的亮度是A.
很强
B.
稍强
C.
减弱
D.
稍弱
E.
缩小光圈亮度
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The company should ensure that( )documents are promptly removed.
A.
absolute
B.
updated
C.
outdated
D.
new
【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
【简答题】How much should be paid for every set of the bidding documents? ___________________________or US ＄ 96.
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