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

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单项选择题

Which of the following is true according to the Spenglerian theory

A．The Negro or the Turk could become a Muslim after a cultural transformation.
B．Culture research should adopt the principle of causality and the opportunity for rational analysis.
C．Western and Eastern cultures will develop on their own paths until they disappear.
D．We should look at cultures more from their interaction than from their individual development.

单项选择题

Which of the following is NOT MENTIONED in the passage

A．The lost cost and high profits are the two major advantages of on-line trading.
B．On-line trading is threatened by invasions.
C．Old investors contribute a lot to on-line trading.
D．Full-service brokers provide investors with helpful information.