翻译下面的句子。

①落英缤纷 _______________________________________________________________________________

②屋舍俨然 _______________________________________________________________________________

③黄发垂髫 _______________________________________________________________________________

④惟吾德馨 _______________________________________________________________________________

⑤亭亭净植 _______________________________________________________________________________

⑥雕栏相望 _______________________________________________________________________________

⑦矫首昂视 _______________________________________________________________________________

⑧天下为公 _______________________________________________________________________________

冷冻干燥制品的正确制备过程是

A．测定产品共熔点→干燥→预冻→升华再干燥
B．预冻→升华干燥→测定产品共熔点→再干燥
C．测定产品共熔点→预冻→升华干燥→再干燥
D．测定产品共熔点→升华干燥→预冻→再干燥
E．预冻→测定产品共熔点→升华干燥→再干燥