单项选择题

People generally believe that on-line trading is a practice of __________.

A．seasoned investors
B．people in a specific province
C．relatively young people
D．groups made up of 20 or 30 traders
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单项选择题
The main idea of the passage is that __________.
A．more retirees are getting interested in the on-line trading
B．on-line trading is more suitable for the old than for the young now
C．on-line trading enables the retirees to get rid of their advisers
D．on-line trading offers incredible tools and high profits to investors
单项选择题
The retired crafts designer Carol Potts sounds to be __________.
A．very analytical
B．quite shrewd
C．kind of seasoned
D．rather confident
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