下列关于职业道德功效的说法，不正确的是（ ）。A．职业道德能提高从业人员坚守本职的事

根据实际情况回答问题。

1. What's your name?

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2. When do you go to school?

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3. When do you have math class?

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4. When do you eat dinner?

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5. Do you go to bed at 9: 00?

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6. How many pencils do you have?

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2013年3月全国两会中，排名前三的热点话题分别是“社会保障”、“ * * 倡廉”、“收入分配”，我市某初级中学九年级⑴班同学以“关心国家大事，聚焦家乡发展”为主题，进行研究性学习。请你一起参与探究和实践。

[知识探究]运用所学的知识对上述三个热点话题进行初步解读。

（1）社会保障保制度的核心、依法治国的根本目的、我国的分配制度分别是什么？

[建言献策]通过上网、社会走访等方式，同学们发现这些话题也是家乡发展过程中需要解决的问题。

（2）作为小主人，请你为解决这些问题贡献金点子。（至少3条6分）

[盘点收获]通过探究和实践，同学们受益匪浅。

（3）请你写出参加这次活动的收获。（3分）

IEEE 802.11的物理层规定了三种传输技术，即红外技术、直接序列扩频(DSSS) 和跳频扩频(FHSS) 技术，后两种扩频技术都工作在______的ISM频段。

A) 600 MHz
B) 800 MHz
C) 2.4 GHz
D) 19.2 GHz

"It’s no use, Mum," said Johnny. "I’m just no good at dancing."

"You’ve got to keep trying. Tonight will be (1) , dear. Try a turn with that pretty Lisette. "

Johnny (2) . Every Saturday night used to be the best of the week. He and his parents went to the (3) at the Club, where his hero, Alcide, played the accordion with the band. But lately everything had changed. Now that Johnny was older, he was (4) to dance with a girl!

(5) Johnny and his parents arrived at the Club, music had already started. Johnny got up his (6) to approach Lisette. "May I have this dance" Johnny asked. "That’s all right."said Lisette. Johnny struggled to keep up with Lisette’s (7) steps, but he was always one beat behind her. Then Johnny heard his friend Pierre say, "Look! Johnny has two left feet!" (8) burst from the crowd. Johnny (9) and ran outside, determined never to go to another dance.

The next Saturday, Alcide (10) to Johnny’s house for some potatoes. He happened to hear Johnny playing the accordion. Alcide’s eyes (11) . "Bring that accordion and play some songs tonight," Alcide said. Then he drove off, leaving Johnny staring open mouthed (12) him.

At the Club, Johnny scanned the crowd for Lisette and (13) her. The band played for a long time before Alcide said, "Dear friends, I got a (14) for you tonight. Young Johnny is going to join us!" (15) , Johnny stepped up on the platform, his eyes on the floor. He began to play, and the band (16) behind him. When the song ended, he heard cheers. Johnny kept playing until the dance was (17) . "You did a fine job tonight. Play with us again next Saturday night, " Alcide said. "Yes, sir! " said Johnny. (18) he went outside, Johnny saw Lisette and her friends near the door. Lisette stepped (19) , smiling. "You played really good tonight!" she said."Thank you," Johnny blushed. As he walked on, Pierre (20) moved out of the way for him to pass.Johnny patted his accordion. Come to think of it, in his whole life, he had never once seen Alcide out on the dance floor.

5().

A．If

B．Since

C．Though

D．When

怎样保管防毒面具？