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【单选题】有如下程序： Private Sub Form_Click( ) Dim i As Integer, Sum As Integer Sum = 0 For i = 2 To 10 If i Mod 2＜ ＞0 And i Mod 3=0 Then Sum = Sum + i End If Next Print Sum End Sub 程序运行后，单击窗体，输出结果为
A.
12
B.
30
C.
24
D.
18
【单选题】某高层建筑采用12层钢筋混凝土框架-剪力墙结构，房屋高度48m，抗震设防烈度8度，框架抗震等级为二级，剪力墙抗震等级为一级，混凝土强度等级：梁、板均为C30；框架柱和剪力墙均为C40(ft=1.71N/mm2)。 该结构中框架柱数量各层基本不变，对应于水平作用标准值，结构基底总剪力V0=14000kN，各层框架梁所承担的未经调整的地震总剪力中的最大值Vf,max=2100kN，某楼层框架承担的未经...
A.
M=±283kN·m，V=±74.5kN
B.
M=±380kN·m，V=±100kN
C.
M=±500kN·m，V=±130kN
D.
M=±560kN·m，V=±150kN
【单选题】9（） A.through B.in C.on D.between
A.
Advances in computers and data networks inspire visions of a future " information economy" in which everyone will have (1) to gigabytes of all kinds of information anywhere and anytime. (2) information has always been a (3) difficult commodity to deal with, and, in some ways, computers and high-speed networks make the problems of buying, (4) , and distributing information goods worse (5) better. The evolution of the Internet itself (6) serious problems. (7) the Internet has been privatized, several companies are (8) to provide the backbones that will carry traffic (9) local networks, but (10) business models for interconnection--who pays how much for each packet (11) , for example--have (12) to be developed. (13) interconnection standards are developed that make (14) cheap and easy to transmit information across independent networks, competition will (15) . If technical or economic (16) make interconnection difficult, (17) transmitting data across multiple networks is expensive or too slow, the (18) suppliers can offer a significant performance (19) ; they may be able to use this edge to drive out competitors and (20) the market.