题目内容

What fears people most?
[A] Poultry will infect many people.
[B] The disease can spread quickly among people.
[C] There will be human-to-human transmission.
[D] A new disease combining bird and a human flu will break out.

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[A] less
[B] least
[C] better
[D] best

[A] which
[B] that
[C] if
[D] what

[A] at
[B] in
[C] on
[D] to

[A] old
[B] older
[C] young
[D] younger

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