问题 问答题

将文件夹下GUN\TAR文件夹中的文件FEN.HEN删除。
2.在文件夹下WATER\ICE文件夹中建立一个新文件夹MOUNT。
3.将文件夹下PEAK\RODE文件夹中的文件JUICE.HLP移动到文件夹下YUMON文件夹中,并将该文件改名为SOUP.DLL。
4.将文件夹下DANG文件夹中的文件CHANGE.OPU复制到文件夹下LION文件夹中。
5.将文件夹下NULL文件夹中的文件SPAIN.BBS的属性设置为只读和隐藏。

答案

参考答案:1.进入文件夹下GUN\TAR文件夹中,选定文件FEN.HEN,右击弹出快捷菜单,执行“删除”命令。
2.进入文件夹下WATER\ICE文件夹中,右击弹出快捷菜单,执行“新建”→“文件夹”命令,命名新建文件夹为MOUNT。
3.①剪切:进入文件夹下PEAK\RODE文件夹中,选定文件JUICE.HLP,按快捷键<Ctrl+X>②粘贴:进入文件夹下YUMON文件夹中,按快捷键<Ctrl+V>,完成剪切(移动)过程;③改名:选定文件JUICE.HLP,右击弹出快捷菜单,执行“重命名”命令,改名为 SOUP.DLL。
4.①复制:进入文件夹下DANG文件夹中,选定文件CHANGE.OPU,按快捷键<Ctrl+C>;②粘贴:进入文件夹下LION文件夹中,按快捷键<Ctrl+V>,完成复制过程。
5.进入文件夹下NULL文件夹中,选定文件SPAIN.BBS,右击弹出快捷菜单,执行“属性”命令,勾选“隐藏”和“只读”复选框。

单项选择题

Should we care if over 150 known species of animals have (91) from the earth in the last fifty years Should we be concerned that there are (92) thousands of species whose very existence is (93) endangered—largely because of our activities (94) , after all, is the natural end of populations. Species are born, then (95) , and then die. Some live a (96) time, perhaps millions of years; some die more quickly. We have (97) the extinction of many species we know about, and we have undoubtedly sealed the (98) of others. In fact, there are undoubtedly many other species that have lived among us during our time on earth, but that have disappeared as a (n) (99) of our activities without our ever having known they existed.
It is hard to explain the rationale of many of us who are concerned about such matters. I have never seen a sea whale, (100) I don’t want them to become extinct. Moreover, I felt this way long before I understood anything about how they might be an important part of an ecosystem. Possibly such feelings merely reflect the cultural attitude that it is "nice" to wish other living things well; thus, the attitude is (101) . I feel nice.
There are, of course, more rational reasons for (102) the extermination of any species. For one thing, the kind of attitude that encourages or sanctions the destruction of other species is a threat (103) our own wellbeing. If such an attitude exists, we ourselves might (104) victim to it. living things (including us) might be expected to fare better where there is (105) for life. The extinction of other species could also threaten us (106) by simplifying the system of which we are a part or by destroying parts of the ecosystem (107) which we directly rely. For example, if we continue to poison the oceans (108) we are willing to believe only a few bottom dwellers are affected, we might (109) overstep some critical threshold and trigger the wholesale death of plankton, thus finding ourselves without a major (110) of the world’s food and with our oxygen supplies dwindling.

A.long

B.short

C.comfortable

D.terrible

单项选择题