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【单选题】
用友ERP-U8供应链管理系统中,涉及不同的数据流,目前U8系统不支持( )。A.
物质流
B.
资金流
C.
运输流
D.
信息流
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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.
【多选题】关于环境质量标准和污染物排放标准，下列哪些说法是正确的？
A.
国家环境质量标准是制定国家污染物排放标准的根据之一
B.
国家污染物排放标准由国务院环境保护行政主管部门制定
C.
国家环境质量标准中未作规定的项目，省级政府可制定地方环境质量标准，并报国务院环境保护行政主管部门备案
D.
地方污染物排放标准由省级环境保护行政主管部门制定，报省级政府备案
【简答题】Wood has been used to make paper since the 19th __________(世纪).
【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】Before Straus presented his paper, it has already been proved that ______ may affect the development of children.
【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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