【单选题】Oliver was sent to Mr. Sowerberry, and slept ____ on the first night.
【单选题】Mr. Smith likes traveling _______; but his wife enjoys _______.
A.
by train; taking a taxi
D.
on train; taking a taxi
【简答题】Oliver was led to Mr. Sowerberry's house by Mr. Bumble because___________.
【单选题】循环球式转向器的维修,壳体与侧盖结合面的平面度公差为:
【单选题】罗紫-哥特利法测定牛乳中的脂肪含量时,烘干温度为( )。
【单选题】Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou ____________ yet.
【简答题】Mr. Sowerberry trained Oliver in the undertaking business because___________.