药理学是研究药物与机体间相互作用及其规律的学科。研究内容包括___、____。
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研究药物对机体作用及其原理和规律的科学叫________。研究机体对药物作用规律的科学叫___________。
Thanksgiving is celebrated on _____ in the United States.
A. the first Thursday in November
B. the fourth Thursday in December
C. the first Friday in December
D. the fourth Thursday in November
People in Canada usually ______.
A. do not celebrate Thanksgiving
B. celebrate Thanksgiving on the same day as the Americans
C. celebrate Thanksgiving earlier than the Americans
D. celebrate Thanksgiving later than the Americans
People in the United Sates celebrate Thanksgiving _____.
A. at home
B. at large restaurants
C. in parks
D. publicly
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