From the passage, we learn that the author
A. feels it necessary to take vitamin pills.
B. thinks pill-takers are healthier than those who don't.
C. suggests high doses of vitamins may result in heart disease.
D. finds out an unsatisfied conclusion about taking multivitamins.
查看答案
数据-1，0，3，5，x的方差是34/5，则x=()．
A. -2或5．5
B. 2或5．5
C. 4或11
D. -4或-11
E. 3或10
The author thinks what has been found about fashions by the scientists and the historians
A. incredible.
B. amazing.
C. reasonable.
D. creative.
下列对于清代财政体制表述不正确的是()
A. 清代实行严格的三级财政管理体制
B. 清代恪守“量入为出”、财权集中的原则
C. 滇铜、漕运和盐业是关系清代国民生计的重要经济支柱
D. 高度集权与计划性，以及恪守“不加赋”祖制的传统观念，导致了清朝财政体制的僵化
It is indicated by the author that clothes should be
A. comfortable and durable.
B. new and fresh.
C. expensive and fashionable.
D. simple and unique.
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