下列各项中没有语病的一项是( )
常用的玻片标本有三种：用人的血液做成的玻片标本叫做____；从植物茎上切去一薄片制成的叫做____；从洋葱鳞片叶上撕下一块表皮制作成的叫做____．
—How about the book you are reading?—Good indeed. It many problems we have come across in our study.
