_____ three influenza type A virus subtypes(子类型) have been found in pigs.
#25069
A
By far
B
As far as
C
So far
D
Till far
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 Jim went to answer the phone.   , Harry started to prepare lunch.
#22317
A
Meanwhile
B
Nevertheless
C
Besides
D
However
We hope to finish our experiment________.
#24029
A
long before
B
fast
C
before long
D
fastly