毡圈密封适用于油润滑密封。 A、正确 B、错误-找考题网

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

A.Open
B.Open'datl.
C.Open'dat',
D.Open

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.

A.A.many
B.
B.women
C.many
D.
D.more

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.

A.She
B.
B.She
C.
C.She
D.
D.She

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.

A.A.males
B.
B.males
C.
C.males
D.
D.males

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.

A.A.the
B.the
C.
C.the
D.
D.the

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

A.A.eternal
B.strategic
C.present

问答题

植物的建造功能主要体现在[填空1]空间、[填空2]空间和[填空3]空间三方面

未分类题

The full influence of mechanization began shortly after 1850, when a variety of machines came rapidly into usE.The introduction of these machines frequently created rebellions by workers who were fearful that the machines would rob them of their work. Patrick Bell, in Scoffland, and Cyrus McCormick, in United States, produced threshing machines. Ingenious improvements were made in plows to compensate for different soil types. Stream power came into use in 1860s on large farms. Hay rakes, hay-loaders, and various special harvesting machines were produceD.Milking machines appeareD.The internal-combustion engine run by gasoline became the chief power source for the farm.In time, the number of certain farm machines that came into use skyrocketed and changed the nature of fanning. Between 1940 and 1960, for example, 12 million horses and mules gave way to 5 million tractors. Tractors offer many features that are attractive to farmers. There are, for example, numerous attachments: cultivators that can penetrate the soil to varying depths, rotary hoes that chop needs; spray devices that can spray pesticides in bands 100 feet across, and many others.A piece of equipment has now been invented or adapted for virtually every laborious hand or animal operation on the farm. In the United States, for example, cotton, tobacco, hay, and grain are planted, treated for pests and diseases, fertilized, cultivated and harvested by machinE.Large devices shake fruit and nut from trees; grain and blend feed, and dry grain and hay. Equipment is now available to put just the right amount of fertilizer in just the right place, to spray and exact row width, and to count out, space, and plant just the right number of seeds for a row.Mechanization is not used in agriculture in many parts of Latin America, AfricA.Agriculture innovation is accepted fastest where agriculture is already profitable and progressivE.Some mechanization has reached the level of plantation agriculture in parts of the tropics, but even today much of that land us laboriously worked by people leading draft animals pulling primitive plows.The problems of mechanization in some areas are not only cultural in naturE.For examples, tropical soils and crops differ markedly from those in temperate areas that the machines are designed for, so adaptations have to be madE.But the greatest obstacle to mechanization is the fear in underdeveloped countries that the workers who are displaced by machines would not find work elsewherE.Introducing mechanization into such areas requires careful planning.The first paragraph uses several examples to convey the ideas that ______.A.the introduction of machines into agricultural work created rebellions on the part of the farmersB.the use of internal-combustion engine as a chief power source for the farm produced great influenceC.the mechanization of agricultural work after 1850 gradually robbed many farmers of their workD.ingenious improvements were made in fanning machines in the 1860s to yield production

A.B.
C.
D.
E.
The
F.
A.the
G.the
H.the
I.ingenious