题目内容
(请给出正确答案)
[主观题]
With the help of science and technology, the farmers produced ______ crops in 1994o as the
year before.
A.as twice as many
B.as twice many
C.as many as twice
D.'twice as many
提问人:网友hf041018028
发布时间:2022-01-06
A.as twice as many
B.as twice many
C.as many as twice
D.'twice as many
对SCI(Science Citation Index)的错误描述是()
A.由美国科学信息研究所研制
B.SCI从来源期刊数量划分为SCI和SCI-E
C.SCI指SCI印刷版和SCI光盘版,SCI-E是SCI的扩展
D.SCI学科涵盖人类学、法律、经济等55个领域
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