生物药物的原料来源以天然生物材料为主，因此基本上不存在任何毒副作用和生理副作用。
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rude (Para. 3, Line 2): ______
A. behaving nicely
B. not polite
C. showing satisfaction
banter (Para. 4, Line 2): ______
A. to talk to someone in a friendly and humorous way
B. to point out one’s mistake
C. to express admiration or approval
taking the mickey (Para. 4, Line 2): ______
A. to express a bad opinion of someone’s behaviour
B. to please someone by giving them what they want or need
C. to laugh at someone and make them seem silly
affection (Para. 4, Line 4): ______
A. effect
B. liking
C. anger
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