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【单选题】
锅炉、金属容器内、大型金属管道内适用的安全电压等级为( )V。A.
42
B.
35
C.
24
D.
12
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皮皮学刷刷变学霸
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【单选题】Recently, a possible alternative way of producing paper has been suggested by agriculturalists and environmentalists: a plant called hemp. Hemp has been cultivated by many cultures for thousands of ye...
A.
Ropes.
B.
Waterproof cloth.
C.
Engine fuel.
D.
Life rafts.
【简答题】Wood has been used to make paper since the 19th __________(世纪).
【多选题】“在法学家们以及各个法典看来,各个个人之间的关系,例如缔结契约这类事情,一般是纯粹偶然的现象,这些关系被他们看作是可以随意建立或不建立的关系,它们的内容完全取决于缔约双方的个人意愿。每当工业和商业的发展创造出新的交往形式,例如保险公司等的时候,法便不得不承认它们是获得财产的新方式。”据此,下列表述正确的是?( )
A.
契约关系是人们有意识、有目的地建立的社会关系
B.
各个时期的法都不得不规定保险公司等新的交往形式和它们获得财产的新方式
C.
法律关系作为一种特殊的社会关系，既有以人的意志为转移的思想关系的属性，又有物质关系制约的属性
D.
法律关系体现的是当事人的意志，而不可能是国家的意志
【单选题】All these days he ______ on his paper.
A.
has worked
B.
has been working
C.
was working
D.
is working
【简答题】.The old paper mill has been ______to make way for a new shopping centre. A)held down B)kept down C)cut down D)turn down
【简答题】Before Straus presented his paper, it has already been proved that ______ may affect the development of children.
【单选题】—Will you lend me some paper? —Sorry, mine ______. [ ]
A.
is running out of
B.
has been run out
C.
has run out
D.
has run out of
【单选题】These days Victoria has been __________ in her graduation paper and has no time to take care of her pet dog. [ ]
A.
employed
B.
used
C.
devoted
D.
hired
【单选题】Paper _____ the fibres of plants for many years.
A.
has been made from
B.
have been made out of
C.
has made up of
D.
have been made into
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