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【简答题】
若要完成串口通信,已知一方的波特率为9600bps,则另一方的波特率应设置为_____bps。
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皮皮学刷刷变学霸
举一反三
【单选题】Which one is true as regards to the hardhat according to the passage?
A.
It needs not to be regularly replaced
B.
It is designed to protect from possible impact
C.
It is required to be worn on deck at all times by all ships
D.
fibreglass hardhat should not be used on board ships
【单选题】所谓普通万向节“传动的不等速性',是指主动轴匀速旋转时:
A.
从动轴的转速是不相等的
B.
从动轴在一周中的角速度是变化的
C.
从动轴在一周内的转速是不等的
D.
以上答案均不正确
【单选题】Which one is true according to the lecture?
A.
The slides themselves should be the “star of the show”.
B.
Your slides should not have plenty of “white space”.
C.
By using PowerPoint as the presentation , the presenter tends to lose the attention of the audience.
D.
The more clutter you have on your slide, the more powerful your visual message will become.
【简答题】细菌的最适生长温度为(__), 酵母菌和霉菌为(__)。
【单选题】Which one is true about the types of data collection?
A.
Qualitative data are mostly numerical and usually descriptive or nominal in nature.
B.
Quantitative data is non-numerical in nature and can be mathematically computed.
C.
Data that has been collected from second-hand-experience is known as primary data.
D.
Data collected from a source that has already been published in any form is called as secondary data.
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