Alternating current as a source of power has certain advantages over direct current. 前后两个下划线介词短语分别充当_______。

If the voltage remains constant, the more the resistance, the less the current.

The chemicals in the container are acting on eath other so as ___electric current.

β is the ratio of _____. A: collector current to emitter current B: base current to collector current C: collector current to base current D: emitter current to collector current

The current ratio is measured as: A: current assets minus current liabilities. B: current assets divided by current liabilities. C: current liabilities minus inventory, divided by current assets. D: cash on hand divided by current liabilities. E: current liabilities divided by current assets.

中国大学MOOC: Small __________ electrons are, they play an important role in the formation of electric current.

The quick ratio is measured as: A: current assets divided by current liabilities. B: cash on hand plus current liabilities, divided by current assets. C: current liabilities divided by current assets, plus inventory. D: current assets minus inventory, divided by current liabilities. E: current assets minus inventory minus current liabilities.

You are heading in a northerly direction when you come across an easterly current. Your vessel will ____.

Current liabilities are ______ from current assets to give net current assets.

Actually I was a very experienced swimmer, for I succeeded in making our way through the rip current.