The first Thanksgiving Day was celebrated by the pilgrims from Europe for a good harvest and extending thanks to the native Indians who helped them through the firs twinter. ______
【单选题】用二氧化硅和金属氧化物的形式表示硅酸盐的组成,不正确的是 ( ) A .钙沸石 [Ca(Al 2 Si 3 O 10 ·3H 2 O)] CaO·Al 2 O 3 ·3SiO 2 ·3H 2 O B .镁橄榄石 (Mg 2 SiO 4 ) 2MgO·SiO 2 C .长石 (KAlSi 3 O 8 ) K 2 O·Al 2 O 3 ·3SiO 2 D .高岭石 [Al 2 Si 2 O 5 (OH...