问题
单项选择题
下列情况哪一种为系统误差?()
A.读错了仪器的刻度
B.测量时,环境温度、湿度和气压微小波动
C.滴定时,不慎将标准溶液滴到了容器外边
D.对滴定管读数不准确
答案
参考答案:D
下列情况哪一种为系统误差?()
A.读错了仪器的刻度
B.测量时,环境温度、湿度和气压微小波动
C.滴定时,不慎将标准溶液滴到了容器外边
D.对滴定管读数不准确
参考答案:D
An analyst gathered the following annual data for SMG Corporation on 2004:
Net profit margin | 5% |
Total asset turnover | 2.0% |
Total assets to equity | 2.5% |
Net income | $25000000 |
Dividends paid on common stock | $10000000 |
A. 10.0%.
B. 15.0%.
C. 20.0%.