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When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

A．that

B．it

C．this

D．what

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相关试题

, most teenagers now listen to rock music . However, Jonah prefers classical music .

A．In a word

B．In general

C．In particular

D．In total

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Dr Watson wrote his nameand carefully at the top of the paper.

A．anxiously

B．attentively

C．obviously

D．clearly

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Jane was so for the news of her lost child that she was almost driven .

A．proper , madly

B．thirsty , mad

C．sad , madly

D．curious , mad

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—Has the design of the city square been decided?
—No, it’s still ______ to suggestions.

A．open

B．welcome

C．ready

D．hopeful

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The bicycles in the other shops will be _____but _____.

A．cheaper, not as good	B．more cheap, not as better
C．cheaper, not as better	D．more cheap, not as good

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