穿孔质量对爆破质量的影响主要有哪些？

下列各句加点词语，使用恰当的一项是                                    （   ）

A．我站在书屋前，久久地，久久地凝视着眼前的青藤。这棵在人们的心目中存活了四百多年的青藤啊，它曾经蒙尘，曾经遭垢，曾经枯萎，但它却从不曾死亡。

B．在我国老百姓总体生活水平不高、人均物质消费量终究有限的情况下，我国能源资源和环境容量超常规耗用的主体，非生产性消费莫属。

C．深圳证券交易所理事长陈东征昨日在接受上海证券报独家专访时表示,深交所已经为建立创业板准备了8年,目前已是船到桥头自然直。

D．从此，他迷上寻宝之路，并深陷其中。因为寻宝，他耗尽家产，穷得水米无交，但他经受住金钱诱惑，拒绝了老外的“好意”。

关于隐裂错误的描述是（）

A.牙隐裂好发于上颌磨牙的近中腭尖

B.牙尖斜度越大，隐裂发生率越高

C.上颌磨牙隐裂常与近中舌沟重叠

D.修复缺失牙对隐裂治疗无帮助

E.碘酊染色能帮助诊断隐裂牙

Volunteers, as an essential part of a successful world exposition, are a major channel for the public to participate in, serve and share the world exposition and a means to showcase the image of the host country and city. The following information is about the volunteer for the World Exposition 2010 Shanghai China．

I．Basic Requirements for Volunteers                         

●   Be willing to participate in voluntary services of Expo 2010;      

●   Age limit: Expo Site volunteers must be born before April 30, 1992 and Expo City Voluntary Service Station volunteers before April 30, 1994;

●   Obey the laws and regulations of the PRC;

●   Be able to participate in training and relevant activities before the opening of Expo 2010;

●   Possess necessary knowledge and skills needed by the position;

●  Be in good health to meet the requirements of corresponding voluntary positions．

II．Further Information for Volunteers

●  Source

Residents of Chinese mainland, Hong Kong, Macau and Taiwan, as well as overseas Chinese, and foreigners can all apply to be the volunteers．

●  Signup methods

Applicants may log in onto the official websites for online signup．They may also consult or connect with the Expo Volunteer Stations．

●  Time

May 1 - December 31, 2009

Ⅲ．Volunteer Training

Volunteer training includes general training, special training and position training．General training is carried out through internet, while special training and position training are provided through classroom lectures and field practice．

IV．Volunteer Types

●  Expo Site volunteers refer to those offering voluntary services to visitors and the Organizer in the Expo Site, mainly including information, visitor flow management, reception, translation and interpretation, assistance for the disabled, and assistance in media service, event and conference organization and．volunteer management．

● Information booth volunteers are stationed in the Expo's information booths at key transportation centers, commercial outlets, tourist attractions, restaurants, hotels and cultural event places outside the Expo Site．They offer services including information, translation, interpretation and even first aid．

小题1:If you were born in April 1993, where can you be a volunteer?

A．In the Expo City．

B．In the host country．

C．In the Expo Site．

D．In Chinese mainland小题2:Which of the training will be done on the Internet?

A．Position training．

B．General training．

C．Classroom training．

D．Special training．小题3:Which of the following service is offered by information booth volunteers?

A．Assistance in media service．

B．Helping the disabled

C．Emergency First aid．

D．Visitor flow management．

某产妇，会阴侧切术后5天， * * 出血不多，自觉会阴胀痛，发热，检查见局部红肿、硬结，体温38.2℃。

此时考虑诊断为（）

A.会阴伤口血肿

B.子宫内膜炎

C.会阴侧切伤口感染

D.上呼吸道感染

E. * * 壁血肿

基本生活救助针对困难群体的小组工作中，在（）社会工作者要帮助小组成员逐渐澄清对于小组的期望，明确小组的目的。

A.小组初期

B.小组聚集期

C.小组形成期

D.小组冲突期