柴油机换向到位是指：（）。 A.换向手柄推至换向位置 B.凸轮相_爱下问搜题

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问题单项选择题

柴油机换向到位是指：（）。

A.换向手柄推至换向位置

B.凸轮相对曲轴的位置转换到位

C.换向控制阀换到位

D.柴油机反向运转

答案

参考答案：B

选择题

2009年2月28日，十一届全国人大常委会七次会议审议并通过的《中华人民共和国食品安全法》，2009年6月1日起施行。之所以制定《中华人民共和国食品安全法》是因为 [ ]

①社会主义市场经济发展的新形势的要求

②有法可依是依法治国的前提

③法制建设必须从立法开始

④有法可依是法制建设的中心环节

A．①②③

B．①④

C．②③④

D．①③④

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．telling

B．to tell

C．tell

D．told