【单选题】目前医学界尚未证实,适量饮用咖啡可以降低( )的发病几率。
【单选题】The new trend in artificial intelligence research stems from______.
A.
the shift of the focus of study on to the recognition of the shapes of objects
B.
the belief that human intelligence cannot be duplicated with logical, step-by-step programs
C.
the aspirations of scientists to duplicate the intelligence of a ten-month-old child
D.
the efforts made by scientist in the study of the similarities between transistors and brain cells
【单选题】Which of the following made the Americans neglect the current immigration flood?
A.
The focus on the social and cultural costs and benefits of immigration.
B.
The distinction they made between immigrants.
C.
The lack of recognition of the immigrants' economic influence.
D.
The lack of recognition of the immigrants' differences.
【多选题】网络营销信息传递渠道运营的四种基本形式,其中不包括:
【单选题】小军同学使用已经调节好的天平,在测量物体质量的过程中,通过增减砝码后,指针的位置在分度盘的中线偏左,此时他应该 ( )
【单选题】目前医学界尚未证实,适量饮用咖啡可以降低()的发病几率。
【多选题】电梯的主开关不得切断( )的供电电路。【多选】