2010年職稱英語理工類AB級每日一練（12.09）

1. The committee comprises five persons.
    A) absorbs
    B)concerns
    C) excludes
    D)involves
    2. We derive ()knowledge mainly from books
    A)deprive
    B) obtain
    C) descend
    D)trace
    答案：1 D. 　 2. B.