题目内容

Read the following two texts about two airlines and answer questions 1-10.

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更多问题

Read the following passage about Coca-Cola and answer questions 1-10.

Read the following texts about deadlines and answer questions 11-20.

Task 3

滤油器的作用是过滤混入液压油中的杂质,保持液压油的清洁。

A. 对
B. 错