已知有如下语句： s＝'hello, world' r=Mid(s，7，5) 运行上面的语句后，变量r的值为 ( )
D.orld

判断题毡圈密封适用于油润滑密封。 A、正确 B、错误

未分类题在窗体中添加一个命令按钮Commandl和一个文本框Text1，编写命令按钮Com-mand1 的 Click事件代码； Private Sub Command1_Click() Dim S As String*20 S=TextText End Sub 该程序的功能是当单击按钮Command1时，把变量S中内容写入一个顺序文件 datl. dar中，正确的程序段是 ( )A.Open 'datl. dat', For lnput As#1 Write井1,SB.Open'datl. dat' For Output As#1 Write#1, SC.Open'dat', For Binary As #1 Write #1, S Close #1D.Open datl. dat'For Random As #1 Write #1, S Close #1

单项选择题诉讼时效在进行到最后6个月时，因不可抗力或其他障碍导致权利人不能行使请求权，诉讼时效不得暂停计算。（）

未分类题The examples of her cousin Michelle and the building's manager are used to show _____.A.many people choose divorce to solve their emotional problems.B.women are not satisfied with their marriage:C.many people are not confident in serious relationships.D.more people are becoming loveless singles.

未分类题Why does the author want to share her 'romantic wisdom' with the singletons?A.She wants to give it to the singletons as a Valentine Gift.B.She thinks it is her responsibility to help them.C.She feels that she has been very selfish beforE.D.She wants to revive her feelings of dating a long time ago.

单项选择题87.议题性活动比较简单而且是单个活动，所以不需要制定会议程序。 A、正确 B、错误

未分类题By saying 'At heart, though, we're the same animals we were 800 years ago. the author means that _____.A.males have not changed a lot in their pursuit of status.B.males are always willing to conquer large areas of lanD.C.males are still striving hard for equality and classless societies.D.males are still agonizing over their gender roles.

未分类题The last sentence 'but because they have back doors that are too small' probably means that _____.A.the government do not have a big back gate in its offices,B.the disabled often grow too dependent on the benefits to work.C.the disabled are trying to get their benefit through back doors.D.the government is trying to stop the disabled from working.

问答题7.简述硅片制备的基本过程

未分类题The word 'omnipresent' in ParA.3 probably means ______.A.eternalB.strategicC.present everywhereD.sovereign