單項(xiàng)選擇題

“先快后慢，先多后少”這個(gè)遺忘規(guī)律的研究者是__（）

A.威廉·馮特
B．艾賓浩斯
C．馬斯洛
D．巴甫洛夫

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單項(xiàng)選擇題

CBG020壓桿式黃油搶在已排盡空氣仍然打不出潤(rùn)滑脂時(shí)，應(yīng)停止操作、并仔細(xì)檢查搶內(nèi)的，故障排除后，方可重新操作（）

A.油脂
B．拉桿
C．活塞
D．阻塞

purely perceive discourage dynamics unlikely specialty reasonably sink extended actually My father was a historian and his was the history of Germany.

答案： My father was a historian and his specialty was the history ...