Batteries are a good example of:
A) Conversion of chemical energy into electrical energy.
B) Conversion of heat energy into mechanical energy.
C) Conversion of electrical energy into heat energy.
D) Conversion of mechanical energy into electrical energy.
A
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Indicate whether the statement is true or false
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A popular and effective data presentation method is to show the stress distribution in a part by plotting stress ____ directly on the part image. In this way, the location and level of the highest stress in the part can be located easily.
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