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【多选题】
以下作为主要活性物质,用于生产合成洗涤剂的阴离子表面活性剂有( )A.
烷基聚氧乙烯醚硫酸酯盐
B.
脂肪醇聚氧乙烯醚
C.
烷基酚聚氧乙烯醚
D.
烷基磷酸酯盐
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【简答题】PART III Reading Comprehension Task 4 54
【单选题】They fulfilled the task in _____ it took us. (TEM4-1992-54)
A.
three-fourths time
B.
three-fourth time
C.
three-fourths the time
D.
the three-fourths time
【单选题】Which system has the least effective radius of operation?
A.
HF SITOR
B.
MF NBDP
C.
VHF DSC
D.
NATTEX
【简答题】PART III Reading Comprehension Task 4 54
【单选题】Effective operation within any organization requires an efficient and coordinated flow of _______ throughout the organization.
A.
research
B.
market awareness
C.
information
D.
accounting data
【单选题】Which radio system has the least effective radius of operation?
A.
HF DSC．
B.
MF telex.
C.
NAVTEX.
D.
VHF radio telephone.
【判断题】A very clear and effective supply chain emphazises the importance of individual production units and effective operation of every single system.
A.
正确
B.
错误
【简答题】PART III Reading Comprehension Task 4 54
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