【单选题】“提高用户对检索结果的点击率”,这属于搜索引擎营销的目标层次中的( )
【判断题】同等情况下湿式离合器比干式离合器散热性能好
【判断题】正角的三角函数值都是正的,负角的三角函数值都是负的。
【单选题】Which of the following is not a characteristic of the Open University?
A.
It’s open to everybody.
B.
It requires no formal educational qualifications.
C.
No university degree is awarded
D.
University courses are followed through TV, radio etc.
【判断题】同等情况下湿式离合器比干式离合器散热性能好。()
【单选题】康复治疗技术的( )是指让患者在意识控制下训练,在神经系统中形成预编程序、自动的多块肌肉协调运动的记忆印迹,从而使患者能够随意再现多块肌肉协调、主动运动形式的能力,而且比单块肌肉随意控制所产生的动作更迅速、更精确、更有力。
【简答题】In 1971, the Open University started to______.
【单选题】Which of the following is not a characteristic of the open university?
A.
It is open to everybody.
B.
It requires no formal educational qualifications.
C.
No university degree is awarded.
D.
University courses are followed through TV, radio, correspondence, etc.