单项选择题

It will be safer to walk the streets because people will not need to carry large amounts of cash; virtually all financial （）will be conducted by computer.

A. transactions
B. transmissions
C. transitions
D. transformations

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单项选择题
As ordinary people, scientists are by no means more honest or（）than other people, but as scientists, they attach special value to honesty while they are in their working sphere.

A. ethical
B. ethnic
C. aesthetic
D. esthetic
单项选择题
The problem is that the loss of confidence among the soldiers can be highly contagious.
A. spreading
B. contemptible
C. contented'
D. depressing
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