皮皮学，免费搜题
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搜题
【单选题】
吗啡的镇痛作用机制是由于A.
降低外神经末梢对疼痛的感受性
B.
激动中枢阿片受体
C.
抑制中枢阿片受体
D.
抑制大脑边缘系统
E.
抑制中枢前列腺素的合成
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】What does the principle of collective responsibility mean?
【多选题】What does WHERETO teaching design principle refer? ( )
A.
equip students, help them experience the key ideas and explore the issues
B.
hook all students and hold their interest
C.
allow students to evaluate their work and its implication’s
D.
help the students know where the unit is going and what is expected
【多选题】What does WHERETO teaching design principle refer? ( )
A.
hook all students and hold their interest
B.
allow students to evaluate their work and its implication’s
C.
equip students, help them experience the key ideas and explore the issues
D.
help the students know where the unit is going and what is expected
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