【单选题】Is that his pen __________ the lost and found case? [ ]
【单选题】—Where's your pen? —It's _____my pencil case. [ ]
【单选题】You’d better ______ some hot water into the teapot in case the tea cools down.
【单选题】You’d better ______ some hot water into the bottle in case the teacools down.
【单选题】理想信念是精神之“钙”。以下属于信念的特征的是
【单选题】They always lay a large supply of tinned food in winter in case they are snowed up.
【单选题】直流电动机的E与电枢电流Ia的方向和Te的性质分别是______。