题干
Agricultural officials this week said strict control measures are in place, ____ to prevent the red fire ants spreading across the country.
A：intended
B：to intend
C：to be intended
D：having intended
答案(点此获取答案解析）
A
分裂的后期，纺锤丝牵引染色体移向细胞两极，直接提供能量的物质是（ ）