_____ three influenza type A virus subtypes（子类型） have been found in pigs．
#27191
A
By far
B
As far as
C
So far
D
Till far
推荐题目
Don’t blame him any more. _______, he is only a child.
#26090
A
After all
B
In all
C
Of all
D
Above all
_____ she heard the news that she won a scholarship, she was very excited.
#27498
A
The moment
B
At the moment
C
For the moment
D
A moment
— _________, this math problem seemed quite simple to me, but when I tried to work it out, I just couldn’t.— There are always things like this, I think.
#27613
A
On one hand
B
In my opinion
C
At first sight
D
On its own
He went to the library ______ last night, but you broke your word.
#29002
A
no doubt
B
in need
C
on earth
D
in truth