According to the text, the mayor of London, Ken Livingstone seems to be very supportive of the congestion charging scheme because of
A.
his interest in traffic.
B.
the weak response of politicians.
C.
his political motives.
D.
the complexity of the problem.
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【单选题】If the “new techniques” mentioned in line 31 were applied in studies of biological classifications other than bacteria, which of the following is most likely?
A.
Some of those classifications will have to be reevaluated.
B.
Many species of bacteria will be reclassified
C.
It will be determined that there are four main categories of living things rather than three.
D.
It will be found that true bacteria are much older than eukaryotes.
E.
It will be found that there is a common ancestor of the eukaryotes, archaebacteria, and true bacteria.