问题 多项选择题

下列情形中,对地理信息数据安全造成不利影响的有( )。

A.异地备份

B.数据转存

C.人为错误

D.信息窃取

E.黑客入侵

答案

参考答案:C,D,E

解析: 本题考查影响地理信息数据安全的因素,主要有:①安全意识淡薄;②测绘技术上的落后;③硬盘驱动器损坏;④人为错误;⑤黑客入侵;⑥病毒;⑦信息窃取;③自然灾害;⑨电源故障;⑩磁干扰。

阅读理解

Do you know what school life is like in Singapore? In Singapore, a class only lasts half an hour, but there are no breaks between classes. The students only have a 30-minute tea break after 3 or 4 classes.

They do not do eye exercises. Yao Suyu said our eye exercises were unfamiliar(不熟悉)to her. “I’d like to introduce them to our school,” she said. “They’re very useful!”

In Singapore school ends at 1:50 p.m. But students joined other classes after school such as dance clubs and choir(合唱团). Yao says she joins dance club twice a week and it lasts from 1:30 to 5:30 p.m.

Singapore’s population(人口)includes Chinese, Indians(印度人), Malays(马来人 )and Westerners. But there is no special school for any one of the groups. The students in Yao’s school are mainly Chinese, Indians and Malays. “The Indian students take Indian language classes when we study Chinese,” said Yao. “But if an Indian student is interested in Chinese, he or she can study it, too.”

In Singaporean schools, teachers teach in English. It’s the official(官方的)language in Singapore. Singaporean students have to take different courses after school. Like most Singaporean students, Yao took other courses in Chinese, math and English.

小题1:How long does a class last in Singapore?

                                                                          

小题2:Do the students do eye exercises in Singapore?

                                                                          

小题3:When does school end in Singapore?

                                                                          

小题4:What does Singapore’s population include?

                                                                          

小题5:In which language do teachers teach in Singaporean schools?

                                                                        

问答题 简答题