It’snoteasyfortheexperttopigfl

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更新 2022-09-03
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挑错有奖

It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.

A．distinguish

B．separate

C．identify

D．recognize

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相关试题

After graduation I was employed by a small private business and a small office was _______
for me.

A．equipped

B．offered

C．shown

D．provided

题型：未知
难度：未知

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Have you sent that letter off yet? There’s something important I’d like to add ______ it.

A．up

B．to

C．/

D．with

题型：未知
难度：未知

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Living in a house on a mountain top ______ be rather cold, especially in winter.

A．can

B．shall

C．need

D．should

题型：未知
难度：未知

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_______ a reply from Mabel, Jack sent another e-mail to her.

A．Not receiving	B．Having not received
C．Not received	D．Not having received

题型：未知
难度：未知

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The question under discussion here is ______ of the "white pollution".

A．that

B．which

C．one

D．it

题型：未知
难度：未知

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