It could take 4-6 months before the first batch（批）of vaccines （疫苗）are available to fight A/H1N1 flu ________ as swine flu, WHO officials said.
| A．known | B．to know | C．knowing | D．having known |
相关试题
Tom was ______ that he couldn’t understand ______ difficult sentence.
| A．so a stupid boy; such | B．a so stupid boy; a such |
C．so stupid a boy; a such |
D．so stupid a boy; such a |
—Do you know Ann Watterson very well?
—Yes, she used to be ______ coach and in ______ charge of our school team.
| A．a; the | B．the; the | C．a; 不填 | D．不填; 不填 |
—Do you mind if I smoke here?
—______ I feel a bit sick.
| A．Not at all. | B．Why not. |
| C．Go ahead. | D．I’d rather you didn’t |
She tried to stay calm on the stage, but her trembling voice _______ her nervousness.
| A．gave away | B．gave up; | C．gave off | D．gave out |
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