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【单选题】
Why does the professor mention the wood thrush?A.
To contrast its displacement activities with those of other animal species
B.
To explain that some animals display displacement activities other than grooming
C.
To point out how displacement activities are influenced by the environment
D.
To give an example of an animal that does not display displacement activities
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】渴望与______响应_______的激活程度有关。
A.
杏仁核; 痛
B.
内侧前额叶皮层; 可卡因
C.
腹侧被盖区; 压力
D.
腹侧被盖区; 水摄入量
E.
前扣带; 痛
【简答题】土壤是发育于地球陆地表面具有 和环境功能的疏松表层,具有生物活性和多孔隙结构的独立的 。
【单选题】She couldn’t help, even though she tried not to, ____ at the strange clothes her friend was wearing.
A.
to laugh
B.
laugh
C.
laughing
D.
laughed
【单选题】Susan wanted to be independent of her parents. She tried ___________alone, but she didn’t like it and moved back home.
A.
living
B.
to live
C.
to be living
D.
having lived
【单选题】She tried to steer the _____ away from the topic of marriage.
A.
importance
B.
custom
C.
conversation
D.
sympathy
【单选题】She wanted to be independent of her parents. She tried ____ alone, but she didn’t like it and moved back home.
A.
living
B.
to live
C.
to be living
D.
having lived
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