32．___________the many ways illegal immigrants come into the United States every year, the vehicle crammed with crowds seems to be the method of choice lately, however, tragedies such as deaths on the journey to the destination, are sometimes reported nowadays．

菠菜根的分生区细胞不断分裂使根向远处生长，在分裂过程中不会出现的是（    ）

甲午战争以后，国内出现了兴办近代民族工业的热潮，直接原因是（  ）

下面每个表格中的四个数都是按相同规律填写的：

根据此规律确定x的值为（　　）

牧羊人放牧，只需要管好头羊，羊群中的其他羊都会跟着头羊走，依据是羊具有（   ）