下列烧结方法对消除过湿层水分过大效果最为明显的是()。
A.小球烧结
B.富氧烧结
C.热风烧结
参考答案:A
—Linda, how is your classmate, Lisa?
—She never says a bad word ________ her friends. She’s the kindest girl I’ve ever met.
A.for
B.in
C.with
D.about
洋金花所含主要成分是( )
A.黄酮类B.生物碱类C.木脂素类D.蒽醌类E.胡萝卜素类