若f(x)g(x)=f(x)h(x),则g(x)=h(x)
A. 对
B. 错
What do effective readers do?
A. read phrase by phrase, rather than word by word.
B. concentrate on the important bits, skim the rest, and skip the insignificant parts.
C. use different speeds and strategies for different reading tasks.
D. guess the meaning of new words from the context, or ignore them.
E. perceive the information in the target language rather than mentally translate.
F. have and use background information to help understand the text.
在下列报表中，属于特殊目的、反映企业专项成本的报表是()。
A. 主要产品单位成本表
B. 全部产品生产成本表
C. 环境成本汇总表
D. 制造费用明细表
在比率分析法中，将两个性质不同但有相关的指标的比率，称为()
A. 构成比率
B. 动态比率
C. 相关比率
D. 效益比率
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