【简答题】The emphasis on the meaning with new language items and on language skills, rather than on language ______, is important in achieving automaticity of using the target language.
【简答题】如图5所示的机构,AB=r,CD=3r,设图示瞬时,AD与AB垂直,杆AB处于水平,其角速度为【图片】,角加速度为零。求在图示位置时CD杆上被套筒中心B点挡住的点B'点的速度和加速度。【图片】
【单选题】Which speaker will give a lecture on a general topic rather than on particular artists?
【判断题】In modern linguistics, focus is on diachronic study of language, rather than on synchronic study of language. ()
【多选题】一驾驶员李某有4年驾龄,驾驶一台60型履带式挖掘机施工完毕,在回向行驶中,不停地打接电话和发短信,当行至一急转弯处时,由于精力不集中导致挖掘机侧翻到20米高的坡下,造成李某身受重伤,经抢救无效死亡,挖掘机多部件损坏,事故原因分析()。
C.
驾驶员违反安全操作规程,注意力不集中,行驶挖掘机时打接电话收发短信做与操作无关的事
【单选题】Which speaker will give a lecture on a general topic rather than on particular artists?
【简答题】设计一铰链四杆机构作为加热炉炉门的启闭机构。已知炉门上两活动铰链的中心距为50mm,炉门打开后成水平位置时,要求炉门温度较低的一面朝上(如虚线所示),设固定铰链安装在y-y轴线上,其相关尺寸如图所示,求此铰链四杆机构其余三杆的长度。
【单选题】Which of the following statements was based on facts rather than on the authors pure thinking?
A.
Miriam cried herself to sleep.
B.
Miriam had buzzed about all night.
C.
Miriam could only tell wasp larvae.
D.
Miriam had left the cards on the floor.