【判断题】胸、腹部手术的患者,肺膨胀不全发生率较高
【判断题】并联电路中的总电阻等于各支路电阻的倒数和。( )
【判断题】并联电路中总电阻的倒数等于各支路电阻的倒数和。
【单选题】听力原文:W: Jack said he can give us a fide to the game. M: Oh, good, then he does have his car. What does Jack have?
【单选题】爆炸性混合物燃爆最强烈的浓度是____。
【单选题】并联电阻电路中的总电流等于各支路( )。
【判断题】并联电路中的总电阻的倒数等于各支路电阻的倒数和。( )
【单选题】听力原文:W: Jack said he can give us a ride to the game. M: Oh, good, then he does have a car. What does Jack have?