在市场竞争日益 (54) 的今天，任何企业及产品也不可能 (55) 并满足所有的需求

全年均可采收的药材是（）

A.昆虫类动物药

B.两栖类动物药

C.皮类植物药

D.根类植物药

E.矿物药

In 1963, he graduated from the Central Conservatory of Music, in which he ______ four first

scholarships  in a row and then he made his way to Vienna Academy of Music, perfecting his skills to

play the violin.He _______ became the youngest, most talented violinist in the world at the age of 37.     [ ]

A. won; eventually    

B. got; eventually  

C. received; accidentally  

D. gained; appropriately

加速石灰熔化的途径？

民航总局规定，机场的鸟击事故率应控制在每万架次（）次以下。

要采用（）拌制混凝土

A.盐水

B.饮用水

C.热水

D.碱水