【单选题】If there’s a single word you should live your life by, it should be this: Love. It might sound corny , but trust me, there’s no better rule in life.
【简答题】已知图示机构中, L AB =82mm , L BC =50mm , L CD =96mm , L AD =120mm 问: ( 1 )此机构中,当取构件 AD 为机架时,是否存在曲柄?如果存在,指出是哪一构件?(必须根据计算结果说明理由) ( 2 )当分别取构件 AB 、 BC 、 CD 为机架时,各将得到什么机构? ( 10分)
【简答题】已知图示机构中, L AB =82mm , L BC =50mm , L CD =96mm , L AD =120mm 问: 当取构件 AD 为机架时, 曲柄(填写“存在”或“不存在”); 当分别取构件AB、BC、CD、AD为机架时,分别得到 、 、 、 。 (填写铰链四杆机构的类型,比如双曲柄机构)
【简答题】Translate the following English sentences from the text into Chinese. 1) The former star, now 50, said there’s a long list of players he would’ve liked to have played one-on-one, James included. 2) To...
【简答题】Anybody who drives in Arizona at this time of year will be familiar with the annual migration of “snowbirds” — retired people seeking to escape the sub-zero temperatures of the north for the warmer de...