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【单选题】
对太阳辐射平均反射率最大的圈层物质是？A.
大气
B.
海洋
C.
岩石
D.
森林
E.
冰雪
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皮皮学刷刷变学霸
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【单选题】纺织纤维可以分为化学纤维和( )两大类 ,涤纶 纤维 属于( ) 。
A.
植物纤维 ， 化学纤维
B.
动物纤维 ， 化学纤维
C.
天然纤维 ， 动物纤维
D.
矿物纤维 ， 植物纤维
【单选题】Which film is the one _______ main actor has won the Best Actor Prize in the fi lm festival?
A.
who
B.
whom
C.
whose
D.
which
【简答题】Chair Co has developed a new type of luxury car seat. The estimated labour time for the first unit is 12 hours but a learning curve of 75% is expected to apply for the first eight units produced. The ...
【单选题】The company Medtronic ______
A.
has admitted paying kickbacks to surgeons
B.
has denied any financial deals with surgeons
C.
has been sued by its business competitor
D.
was being investigated by the government
【单选题】What problem does the man have?
A.
He found the computer center closed early.
B.
He has not finished his paper yet.
C.
He had to stay up late typing his paper.
D.
His computer is not workin
【单选题】132 Which of the following contract types has the highest risk to the contractor:
A.
Firm fixed price (FFP)
B.
Time and material (T&M)
C.
Cost plus fixed fee (CPFF)
D.
Cost plus incentive fee (CPIF)
E.
A and B only
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