When he arrived, he found ________ the aged and the sick at

When he arrived, he found ________ the aged and the sick at home.A.none but B.no

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自我意识的发展包括生理自我、__________和心理自我三个阶段。

自我意识的发展包括生理自我、__________和心理自我三个阶段。

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This classroom is __________ (dirty) than the one we just le

This classroom is __________ (dirty) than the one we just left.

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