五、何謂自充填混凝土（SCC），請定義之。說明自充填混凝土工作性檢驗使用之方法有那幾種，及自充填混凝土（R2 障礙）之建議試驗值範圍。（20 分）

一、英譯中：請將下列英文譯為中文。（20 分） The New York Public Library is temporarily closed to facilitate necessary upgrades to the building and its heating and cooling systems. The branch is scheduled to reopen on January 9, 2014. The book drop will remain open during this time. During this construction, we encourage patrons to visit our nearby branches.