The French flower woman apparently came to this restaurant quite often for her business.
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1与x的等比中项中有一个是5,则x的值为( )
A. -25
B. 25
C. 5
D. -5
当有外文文献需求时,我们可以查询本馆已经购买的一个外文期刊库()
A. EBSCO
B. CNKI
C. Springer
D. IEEE
在EBSCO中查询哈佛商学院标志性期刊《哈佛商业评论》(Harvard Business Review,简称HBR),最早的文献可以追溯到哪一年?()
A. 1911
B. 1922
C. 1936
D. 1948