单项选择题

At present, it is not possible to confirm or to refute the suggestion that there is a causal relationship between the amount of fat we eat and the______ of heart attacks.

A．incidence
B．impetus
C．capture
D．emergence
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单项选择题
There are many who believe that the use of force ______ political ends can never be justified.
A．in search of
B．in pursuit of
C．in view of
D．in light of
单项选择题
The project, ______ by the end of 2000, will expand the city's telephone network to cover 1, 000,000 users.
A．accomplished
B．being accomplished
C．to have been accomplished
D．having been accomplished
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