单项选择题

A．The threat of poisonous desert animals and plants.
B．The exhaustion of energy resources.
C．The destruction of oil wells.
D．The spread of the black powder from the fires.
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单项选择题
The traditional capitalist view is that people.
A．engage in commercial activity for the purpose of economic gain
B．are driven largely by non-profit motives
C．do the things that they do for love
D．tend to search {or meaning in their lives
单项选择题
A．To praise and encourage their children more often.B．To be hard on their children.C．To leave their children alone with nothing to do.D．To give their children as much help as possible.
A．To praise and encourage their children more often.
B．To be hard on their children.
C．To leave their children alone with nothing to do.
D．To give their children as much help as possible.
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