下列说法中，正确的是 [ ] A．没有最大的正数，但有最大的_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

下列说法中，正确的是 [ ]

A．没有最大的正数，但有最大的负数

B．最大的负整数是﹣1

C．有理数包括正有理数和负有理数

D．一个有理数的平方总是正数

答案

答案：B

单项选择题

计算机与网络传输介质连接，必须具有的设备是 (10) 。

A．网卡
B．集线器
C．交换机
D．路由器

填空题

Part 4

Questions 26-45

·Read the following passage and choose the best word for each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.
Do you want to send an e-mail message to the White House
Good luck.
In the past, (26) President Bush — or at least those assigned to read his mail — what was (27) your mind it was necessary only to sit down at a personal computer connected to the lnternet and (28) a note to president@ whitehouse.gov.
But this week, Tom Matzzie, an online organizer with the A.F.L.-C.I.O., discovered that (29) with the White House had become a bit more (30) . When Mr. Matzzie sent an e-mail protesting (31) a Bush administration policy, the message was bounced back With an automated reply, saying he had to send it again in a new way.
Under a system (32) on the White House Website (33) the first time last week, those who want to send a message to President Bush must now (34) as many as nine Web pages and (35) a detailed form that starts by asking whether the message sender supports White House policy (36) differs with it.
The white House says the new e-mail system is an effort to be more responsive (37) the public and offer the administration "real time" access (38) citizen comments.
Completing a message to the president also requires (39) a subject from the provided list, then entering a full name, organization, address and e-mail address. (40) the message is sent, the writer must wait for an automated response (41) his message, (42) whether the addressee intended to send the message. The message is delivered to the White House only after the person using that e-mail address (43) it.
"Over (44) , it’s a very cumbersome process," said Jakob Nielsen, an authority on Web design. "It’s probably designed deliberately to (45) on their e-mail.\

A．is deployed

B．deplored

C．deployed

D．employed