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。
A. 对
B. 错
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
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