单项选择题

Canning (is) the (most wide) used (method) of food (preservation).

A. is

B. most wide
C. method

D. preservation
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(Without) entering the body and (cause) damage, the CT is (far) superior (to) the X - ray or exploratory surgery.()

A. Without
B. cause
C. far
D. to
单项选择题
That ______ the case, how can you expect to get everybody moving
A. is
B. has been
C. being
D. was
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