A.樁徑800mm,樁長10m; B.樁徑420mm,樁長2.5m; C.樁徑1000mm,樁長4.5m; D.樁徑600mm,樁長6m。
A.Ⅰ B.Ⅱ C.Ⅲ D.Ⅳ
A.10% B.20% C.30% D.50%