【判断题】切削速度越高,剪切角越大,切屑变形越小,切削越省力。
【单选题】What does 'it is as plain as the nose on your face' mean? ,
B.
Something looks like your nose.
C.
It is something quite understandable.
D.
There is a plain-looking nose on your face.
【单选题】By 'as plain as the nose on your face', the writer means that what he mentions at the end of the passage is something ______.
【单选题】下列树种中,被列为中国一级保护的树种是( )
【单选题】下列树种中,被列为中国一级保护的树种是()