题目内容
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[主观题]
All the bacteria are not harmful. 所有细菌对人体无害。 ()
All the bacteria are not harmful. 所有细菌对人体无害。 ()
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All the bacteria are not harmful. 所有细菌对人体无害。 ()
Bacteria in the mouth act _________sugars that remain on the teeth after eating.
A、with
B、by
C、for
D、on
B.far and
C.so far
D.as far and
Bacteria are______too small to be seen without a microscope.
A.far
B.fairly
C.so
D.quite
A. configuration B. condemnation
C. constitution D. contamination