蚯蚓是人类的好朋友．它不仅能疏松土壤，增加土壤有机质，由于它可以以植物的枯枝落叶、家畜粪便、生活垃圾等为食，所以还能够在一定程度上减少环境污染，同时蚯蚓还可用作水产养殖业的饲料以及很好的中药材．请分析回答：

（1）如果让你去挖蚯蚓，应该选择的环境是______

A．清澈的小河                 B．富含腐殖质的湿润土壤

C．湿润的土壤                 D．干燥、疏松的土壤

（2）区别蚯蚓前端和后端的主要依据是蚯蚓的______

A、体节         B、环节        C、环带        D、刚毛

（3）在观察蚯蚓的过程中，应经常用浸水的棉球轻擦蚯蚓体表，使体表保持湿润．原因是：______．

（4）蚯蚓在粗糙纸上运动比光滑玻璃板上运动速度______．

（5）实验完成后，应将蚯蚓______．

Directions: Translate the following passage into Chinese.
Monitor your body language to make sure you don’t seem too desperate for the job, or too eager to please. Keep a poker face in business situations. Inappropriate smiling is the most common example of a nonverbal behavior that undercuts verbal messages—making you appear weak and unassertive. Good eye contact is also important. One study found that job applicants who make more eye contact are perceived as more alert, dependable, confident and responsible.