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【简答题】
How to say “大家撸起袖子加油干”? We ___________ up our sleeves and __________ with added ___________.
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】数字电路的两个基本工作信号用0和1表示，对应的电路有两种不同的工作状态，即低电平和高电平(或低电位和高电位)，也叫逻辑。逻辑分为正逻辑和负逻辑，0表示正逻辑，1表示负逻辑。
A.
正确
B.
错误
【单选题】【单选】What type of precipitation is a product of the violent convection found in thunderstorms?
A.
Snow
B.
Freezing Rain
C.
Hail
D.
Sleet
【单选题】By what method is heat transferred from the hotplate to the water?
A.
Radiation.
B.
Conduction.
C.
Thermal.
D.
Convection.
【简答题】A sandstorm, also known as a dust storm, is exactly what it sounds like. A very strong windstorm especially in the desert carries clouds of sand or dust that greatly reduces visibility. This wind is u...
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