Protective trade policy refers to a trade policy by which a government sets up controls over its import trade for the purpose of protecting its economy from foreign competition and provides and to its
A. preferential treatment
B. tariffs
C. subsidies
D. quotas
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下面各个句子哪些通常用升调（）
A. Is this a car
B. What's your name
C. Do you like apples
D. I hate dancing
What kind of sentences are included in an English paragraph（）
A. topic sentence
B. supporting sentence
C. concluding sentence
D. All the options
Which one of the following sentences is a metaphor（）
A. Time is as precious as money
B. Time is like money
C. Time is money
D. Time looks like money
On what days do British people like to write cards（）
A. Father's Day and Mother's Day
B. Christmas
C. birthday
D. All the options
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