单项选择题

According to the passage "progress" doesn't mean that ______.

A．something has become stronger and better
B．something has been changed from being one thing to another
C．something has become funny
D．something turns out to be worse than before

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单项选择题

The children born in the United States today ______.

A．have much more chance of survival than those in the other countries
B．have as much chance of survival as before
C．will probably live to be 70 years old
D．have much more chance of survival than that of death

单项选择题

A price we have to pay in the last sentence of par

A．2 means ______.A. something we have to lose or sufferB. a large sum of moneyC. something very expensiveD. something desirable