【简答题】选词填空。 my your — Who is ___________ friend? — Fengfeng is ___________ friend.
【简答题】( ) had two wheels set at a 90- degree angle to each other to keep track of the movement.
【单选题】I'm putting on weight. The doctor has warned me to______sugar.
【判断题】用摆式仪测定沥青路面抗滑性能时,要进行温度修正的原因是高温时测得的摆值小。
【单选题】If people cutting down the forest, they will have nowhere . [ ]
B.
will keep; t o live in
【单选题】When jacked from the strut, to keep the aircraft from moving while it is on the jack, the wheels that are not jacked should be securely ().
【单选题】用摆式仪测定沥青路面抗滑性能时,要进行温度修正的原因是()。