患者，女，15岁，颏部发育差，唇前突闭合不全，面下1／3高度偏大，覆盖9mm，磨牙完全远中关系，上前牙前突，前牙开 ，ANB6°，4个第三磨牙牙胚存在，位置正常 本患者可能的错拾类型是（）.

[单选题]下列华为Quidway路由器中属于第三代路由器的是（）.

[单选题]管道防腐层除能切断腐蚀电池的电路，防止管道腐蚀外，还具有（）作用，可以保护管道在运输、储存及施工过程中不受到破坏。

[单选题]安全状况等级为3级的压力容器内外部检验周期为每（）至少一次。

[单选题]施工起重机械和整体提升脚手架、模板等自升式架设设施安装、拆卸单位未编制拆装方案、制定安全施工措施的，可以责令限期改正，处于一定数额的罚款。相应的罚款额应为（）。

[单选题]在以“七区二十三带”为主体的农业战略格局中，（  ）要建设优质水稻、甘蔗和水产品产业带。

[填空题]一个卵母细胞经过减数分裂可形成（）个卵子。

[单选题]患慢性寄生虫感染，显著升高的抗体是（）。

[填空题]培训师在学员档案管理中的具体工作通常围绕档案内容，档案的填写、装订、归档，（），档案保管与销毁等内容展开。

[问答题]You would like to spend two months in London this summer, staying with an English family. You have been offered accommodation in a place in East London but you want to know more about the neighbourhood before you decide whether to accept it or not.Look at the letter you have received from the Home stay Programme Director, the map and the notes you have made on the map. Using these notes, write a least 100 words in an appropriate style. Do not sign your own name at the end of the letter. Use “Li Ming” instead. Now write the letter on the answer sheet.I am pleased to inform you that the Grove family of 27 Erskine Road, London E17, can let you have a room in their house for the months of July and august next year.　　Please let me know as soon as possible whether you wish to accept this offer.　　I enclose a map of the neighbourhood.　　Yours sincerely.　　Richard Thomas　　Home stay programme Director

[单选题]医疗机构对发现的甲类传染病应采取相应的防控措施，下列各项中错误的提法是（）