下列物质的用途错误的是[ ]
A.硅是制造太阳能电池的常用材料
B.二氧化硅是制造光导纤维的材料
C.石英是制取水泥的原料
D.水玻璃可用作木材防火剂
答案:C
“洛阳亲友如相问,一片冰心在玉壶”是唐代诗人()《芙蓉楼送辛渐》一诗中的名句。
Celina was ______ for creating the advertising campaign responsible for a 220% jump in the sales of household cleaning products.
(A) ensured(B) commended(C) incorporated(D) reprimanded