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【判断题】
人类道德的发展是一个曲折上升的历史过程A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】¿Cuál es el precio que tuvo que pagar Chang E por la inmortalidad?
A.
La riqueza que había guardado en casa.
B.
Vivir en una soledad interminable.
C.
La muerte de su marido.
D.
【单选题】question 24.mp3:
A.
She was extremely mean with her money.
B.
She was dishonest in business dealings.
C.
She frequently ill-treated her employees.
D.
She abused animals including her pet dog.
【单选题】mp3:
A.
It can change into acids causing damage to their outer covering.
B.
It greatly reduces their resistance to the attacks of bacteria.
C.
It makes their nerves and blood vessels more sensitive to acid food.
D.
It combines with food particles to form a film on their surface.
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