统计调查过程中采用的大量观察法,是指必须对研究对象的所有单位进行调查。()
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测风时风表不能距人体及巷道顶、帮、底部太近,一般应保持()mm以上的距离。
A. 100mm
B. 150mm
C. 200mm
2015年5月,我国6年来首次调整烟草消费税,将卷烟批发环节税率由5%提高至11%。6月与12月,我国两次下调部分服装、鞋靴、护肤品等日用消费品的进口关税税率。调整这些税率是因为() ①税收是调节经济的重要杠杆 ②加大减税力度,能激发投资需求 ③优化税率能引导消费者科学消费 ④科学宏观调控,拓宽财政收入来源
A. ①②
B. ①③
C. ③④
D. ②④
在中国革命、建设和改革问题上,我们要坚持把马克思主义同我国实际结合起来,坚定不移地走自己的路。
A. 正确
B. 错误
All client computers on your company network were recently upgraded from Windows Vista to Windows7. Several employees use a scanner to import document images into a database. They install a new scanning application on their computers. The application updates the device driver for the scanners as part of the installation process. Employees report that the application can no longer connect to the scanner. You need to ensure that the employees can use the scanner. What should you do?()
A. Roll back the device driver to the previous version.
B. Reinstall the application in Windows Vista compatibility mode.
C. Set the application compatibility properties to run the application as an administrator.
D. Restart the computer by using the System Configuration tool to load only basic devices and services.