【单选题】用一个平面低副联二个做平面运动的构件所形成的运动链共有 个自由度。
【单选题】____ hard condition, Karl Max got a great success.
【简答题】尽管条件艰苦 ______ the hard condition
【多选题】在园林景观环境中,景石常分为哪三种形式?
【单选题】Which condition does not involve the passing of hard stools?
D.
irritable bowel syndrome
【单选题】The working condition of the sailors was very hard. 查看材料
A.
They often had to set the sails in bad weather.
B.
So they had less courage
C.
They were happy to be swept overboard in a strong wind
D.
A 70-day-journey across the Atlantic was their happiest thing
【单选题】The hard working condition will causes the crew to be _______.
【简答题】用一个平面低副联二个做平面运动的构件所形成的运动链共有_______个自由度。