以下可以预防计算机病毒侵入的措施有（ ）。 A．软盘写保护 B．不运行来历不明的文件

全社会应当发扬（）精神，理解、尊重、关心、帮助残疾人，支持残疾人事业。

会计职业道德评价的实质是会计行为( )付诸实施的必要方式。

A．道德修养

B．道德实践

C．道德规范

D．道德标准

Questions 7 to 10 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.

In a distance learning course, one

A．does not have to see the professors.

B．also needs to take exams.

C．reduces the learning expenses.

D．must revise the schedule to attend the course.

辞格层面

成人泌尿系梗阻常见原因（）

A.结石，损伤，肿瘤或结核

B.盆腔内疾病

C.先天性畸形

D.前列腺增生症

E.包皮过长