D．Maglev trains are safer．
14．Argonne believes that people should regard maglev transportation as______.
A．safe，efficient high－speed trains
B．the most exciting form of transportation for the future
C．a kind of aircraft
D．the most economical form of transportation
15．Which countries have probably spent the most money on maglev research？
A．france and West Germany．
B．JaPan nd West Germany．
C．the United States and Japan．
D．West Germany and the United States．
Questions 26-30 are based on the following passage
Nationalparties in the United Sates have generally
Been weak in structure and wary of ideology.Many writers have said that American parties are the least centralized in the world.However，the argument that parties have not represented signficant differences in policy can be pushed too far．For example，in this century，at least，the Republicans have been more committed than the Democrats to a market oriented economy，while the Democrats have been more prepared to use goverment to address economic problems．In general the Republicans
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