下列描述中不属于用来判断《专利法》所确定的实用新型的特征的是( )。A．一种新的技

记者日前从省教育厅获悉，安庆市教育局出台了《安庆市中小学教师行为。。八不准”》。

这“八不准”包括：不准旷课，私自调课和无教案上课；不准上课前饮酒，在课堂上抽烟和使用手机；不准在上班时间及工作场所打牌，下棋；不准歧视、侮辱、体罚或变相体罚学生；不准向学生推销任何教辅资料或其他商品；不准索要和收受学生或家长的礼品礼金；不准训斥，羞辱家长；不准违规搞有偿家教和私自在工作日内到外校兼课。

第一次把“自觉抵制有偿家教”写入其中的是（）。

A．《教师法》

B．《教育法》

C．《义务教育法》

D．《中小学教师职业道德规范》

已知4y²-my+9是完全平方式，则m=______．

女，24岁，无生育史，妊娠42天，采用口服米非司酮及前列腺素，仅6h即排出完整胎囊及绒毛， * * 出血不多。其流产最主要机制为（）

A.抗雌激素作用

B.前列腺素作用引起子宫收缩

C.抑制早孕作用

D.抗孕激素与孕酮竞争子宫内膜受体，却不产生孕酮作用，使蜕膜坏死出血

E.丙酸睾丸酮抑制孕卵生长，达终止妊娠效果

Alvin runs a business selling expensive cars. Last Monday he mistakenly placed a notice on one car indicating that it was for sale for ￡5,000 when in fact its real price was ￡25,000. Bert later noticed the sign and, recognising what a bargain it was, immediately indicated to Alvin that he accepted the offer and would take the car for the indicated amount. Alvin, however, told Bert that there had been a mistake and that the true price of the car was ￡25,000. Bert insisted that he was entitled to get the car at the lower price, and when Alvin would not give it to him at that price Bert said that he would sue Alvin.After Bert had left, Alvin changed the price on the car to ￡25,000 and subsequently Cat came in and said she would like to buy the car, but that she would have to arrange finance.On Tuesday Del came by and offered Alvin the full ￡25,000 cash there and then and Alvin sold it to him.Required:Advise Alvin, Bert, Cat and Del as to their rights and liabilities in the law of contract. (10 marks)

超现实主义的代表作家有（）

A.布勒东

B.苏波

C.阿拉贡

D.艾吕雅

E.恰佩克