题目内容

CaO对烃类的影响

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近代小说的特点及其成因:

下列文件中必须归档的有()

A. 重要文件
B. 一般事务性文件
C. 未成文的草稿
D. 文件定稿

Y型空气过滤器最大工作压力为()。

A. 785kPa
B. 835kPa
C. 885kPa
D. 980kPa

At last,the palm trees that fringe the natural harbor of Port Aloahoa come into view on the horizon lit by the setting sun.The meaning of this sentence is that ().

A. a vessel arrives at a port in a evening
B. a vessel leaves a port in a evening
C. a vessel arrives at a port in a morning
D. a vessel leaves a port in a morning

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