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问题 单项选择题 A1/A2型题

女性，38岁，间断发作下腹部疼痛伴腹泻8年，排便4～5次/天，脓血便，排便后疼痛可缓解。曾行结肠镜检查见充血、糜烂及浅表小溃疡。此患者最可能的诊断是（）。

A.细菌性痢疾

B.肠道菌群失调

C.肠易激综合征

D.溃疡性结肠炎

E.结肠癌

答案

参考答案：D

解析：溃疡性结肠炎的临床表现有腹泻、黏液脓血便、腹痛，并有疼痛-便意-便后缓解的规律，结肠镜检查可见充血、糜烂及浅溃疡，与本例患者较为符合，故考虑溃疡性结肠炎的可能性较大。

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体重为500N的小张同学在河边洗衣服，他静止站在河岸时，双脚着地面积为250cm2．他对水平地面的压强是______Pa，受到的合力是______N；河水从上游快速流向下游，水的重力势能转化为______能；在洗衣服时，有一件衣服飘向河心，这说明水流速度快的河心的压强比水流速度慢的岸边的压强______．（选填：“大”或“小”）
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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
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