问题 单项选择题

把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是()

A.①③⑥,②④⑤

B.①④⑥,②③⑤

C.①②⑤,③④⑥

D.①②③,④⑤⑥

答案

参考答案:D

解析:

①②③中每组图形均共有八个内角,其余几组图形均共有九个内角,故应选择选项D。

单项选择题
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·Read the following passage and choose the best word for each space.
Do you want to send an e-mail message to the White House
Good luck.
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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. cut short B. cut out C. cut in D. cut down