单项选择题

This passage assumed the desirability of ______.

A．living in comfortable family life-style
B．setting disputes peacefully
C．combating cancer and heart disease with energetic research
D．having greater government involvement in people's daily life

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单项选择题

According to this passage, one early step in any effort to improve the environment would be to ______.

A．return to the exclusive use of natural fertilizers
B．ban the use of automobiles in and around cities
C．study successful effort in other countries
D．set up a timetable for collective actions

单项选择题

It could logically be assumed that the author of this passage would support legislation to ______.

A．ban the use of all fertilizers
B．prevent the use of automobiles in the dries
C．build additional conventional power plants immediately
D．organize an agency to coordinate efforts to cope with environmental problems