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【单选题】
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.A.
refers to
B.
related to
C.
comes to
D.
talks to
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【简答题】How old was Peyo at death? Peyo died of a heart attack on an Christmas Eve at the age of _____ .
【单选题】What is Tesco's trading strategy in Central Europe?
A.
It trades in exactly the same way as it does in the UK.
B.
It offers special products to meet local customers' needs.
C.
Its stores are designed in traditional styles.
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