单项选择题

According to the author, there is a trend______.

A．for people to travel more during hard times
B．for younger people to delay working by traveling first
C．for travelers to spend less
D．for younger travelers to be unrealistic as they travel

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单项选择题

According to the author, research on palliative care for cancer______.

A．is more important than research for cancer cures
B．has been overlooked by researchers
C．is virtually non-existent
D．is regarded by researchers as a frivolous topic

单项选择题

Which of the following does NOT account for young people' traveling more

A．The hard economic times.
B．Their need for instant gratification.
C．Expectations that they have a fight to pleasure.
D．A lack of sacrifice.