All of us feel surprised that _____ a little boy can eat _____ much food. [ ]

A. so; such

B. such; such

C. so; so

D. such; so

屋面涂膜防水层，涂料与细石混凝土防水层复合设防时，涂膜宜在下，细石混凝土宜在上，两者之间应设置隔离层，隔离层材料可选择低档卷材、聚乙烯薄膜、无纺布等。( )