题干
Do you enjoy ______ pictures outside?
A：draw
B：to draw
C：drawing
D：to drawing
答案(点此获取答案解析）
C
Do you enjoy ______ pictures outside?
A：draw
B：to draw
C：drawing
D：to drawing
可在乳酸菌作用下分解而排除白色污染，下列有关聚乳酸的说法正确的是( )