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日第十届全国人民代表大会常务委员会第二十九次会议通过《中华人民共和国就业促进法》。

A. 2005年4月30日
B. 2006年7月1日
C. 2007年8月30日
D. 2008年1月1日

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It has been observed that as Mg and H2O react, the Mg(OH)2(magnesium hydroxide) that is producedforms an unreactive coating on the Mg surface. Whichof the following models for why NaCl speeds up thereaction is most consistent with this observation andthe results of the experiments？

A. NaCl absorbs heat produced in the reaction, causing the Mg(OH)2to melt off of the Mg surface.
B. NaCl binds with Fe to inhibit the reaction of Mg with H2O.
C. NaCl reacts with Mg(OH)2to form a stronger bar-rier against H2O.
D. NaCl reacts with Mg(OH)2, removing the coating from the Mg, allowing more contact with H2O.

根据《安全生产法》的规定，安全设备的设计、制造、安装、使用、检测、维修、改造和报废，()国家标准或行业标准。

A. 可以参考
B. 应当参照
C. 尽可能符合
D. 应当符合

是全体公民在社会交往和公共生活中必须共同遵循的行为准则，是社会普遍公认的最基本的行为规范。

A. 职业技能
B. 职业道德
C. 社会公德
D. 传统文化

Dear parents, Im pleased to announce the fifth anniversary of Ridge Language Institute. We have 20 experienced instructors, all of whom have 20 years of experience teaching in private and public schools. We offer tutoring in elementary, high school, and college-level Spanish, French, Korean, and Chinese. All instruction includes practice in conversation, reading and writing. Tutoring schedules are flexible and fees are reasonable. Groups of 5 or more students pay 40% less per person. We guarantee that you will be satisfied with our programs. Bill Green
What service does Mr. Green offer？

A. Tutoring in geography
B. Accounting for small businesses
C. Training in foreign languages
D. Translating and copying documents