The passage mainly discusses______.
A. the rates of yawning
B. the misconceptions of yawning
C. the secrets of yawning
D. the applications of yawning
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Hallowell argues in his new book, Driven to Distraction at Work: How to Focus and Be More
The word "contagion"(Para. 4)most probably means______.
A. spreading
B. learning
C. protection
D. imitation
Selfie sticks have been baned in case of all the following problems EXCEPT______.
A. invasion of personal space
B. damage to the artwork
C. waste of printed guidelines
D. danger to camera users
That US museums impose bans on using selfie sticks reaveals that______.
A. visitors are overcrowded in museums
B. existing rules don" t work
C. museums are taking action
D. people like to wave the sticks