The author concluded that ___________.
A. there are fewer people choosing online shopping than those doing shopping offline
B. people tend to buy more after gathering up-to-date information online
C. distribution of products like music and banking costs less than it does in the traditional channel
D. Internet shopping is just an addition to the traditional means of shopping
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Mother ___________ my poem while my father considered it clumsy.
A. poured scorn on
B. cast light on
C. heap praise upon
D. gave vent to
相关系数的符号是用
A. r
B. η
C. Bq
D. nt/D
E. [α]20/D
0.00850为简便可写成
A. 0.85×10-2
B. 8.5×10-3
C. 85×10-4
D. 8.50×10-3
E. 850×10-5
为了保证药品的质量,国家对药品强制执行的是
A. 质量标准
B. 药品质量标准
C. 药品规定标准
D. 药品的质量要求
E. 药品市场管理条例