题目:
解救氰化物中毒时常与亚甲蓝交替使用的是( )。
A.二巯基丙醇
B.二巯基丁二钠
C.依地酸钙钠
D.硫代硫酸钠
E.青霉胺
答案:
参考答案:D
解析: 本题考查要点是“氰化物中毒的解救”。解救氰化物中毒时亚甲蓝应与硫代硫酸钠交替使用,大剂量时可出现全身发蓝。因此,本题的正确答案为D。
解救氰化物中毒时常与亚甲蓝交替使用的是( )。
A.二巯基丙醇
B.二巯基丁二钠
C.依地酸钙钠
D.硫代硫酸钠
E.青霉胺
参考答案:D
解析: 本题考查要点是“氰化物中毒的解救”。解救氰化物中毒时亚甲蓝应与硫代硫酸钠交替使用,大剂量时可出现全身发蓝。因此,本题的正确答案为D。
全口义齿试戴时要检查哪几项、除了()
A.义齿基托的固位和稳定
B.上下颌骨的颌位关系和义齿咬合情况
C.检查外观
D.检查发音
E.检查进食情况
碘油选择性长期滞留在肝癌中的机制可能是()
A.肿瘤内新生血管丰富,碘油可由于虹吸作用流向肿瘤区
B.肿瘤血管缺乏肌层和弹力层,缺乏神经调节,血流缓慢不足以冲刷碘油
C.肿瘤细胞分泌的渗透增强因子有利于各种物质渗透出毛细血管
D.肿瘤组织内缺乏能清除碘油的单核巨噬系统和淋巴系统
E.肿瘤供血动脉血流缓慢
《中华人民共和国土地管理法》规定,中华人民共和国实行土地的社会主义公有制,即全民所有制和劳动群众集体所有制。国家为公共利益需要时,可以对集体所有的土地依法( )。
A.进行规划
B.分派使用权
C.收回
D.实行征用
The European online fashion business is fierce. Just ask backers of one-time highfliers. Like boo. com, the urban sportswear retailer that tanked last year, and dressmart, com, the struggling men’s wear specialist. Those once stellar online brands expanded too fast, spent much more than they earned, and then lost their investor support after Internet stocks began plummeting last April. The markets sent online fashion stores a tough message: come up with business models that generate revenues. A few firms have shown that not all online fashion shops are Internet disasters. Copenhagen-based haburi, com, the online designer-label discount store, Sweden’s sportswear vendor Sportus and the Italian shirts store Marco Bracci are doing well in a very tough environment. Haburi’s distinctive business model is an Internet version of the factory outlet where brand manufacturers sell directly to consumers at lower prices from huge out-of-town shopping malls. A concept used in the U. S. far more than in Europe, and Haburi wants to fill the gap. Michael Vad, Haburi’s CEO, says that Europe’s apparel factory outlet sector could yield $10 billion in sales annually. According to Vad, national regulations that limit malls outside city centers have hampered the development of this sector. "For the consumer, there is the two-hour drive to the mall, and when you get there, you don’t know whether you will get the size or color you want," says Vad. By going online, Haburi aims to cut the retailer’s costs, save consumers the long drive, and deliver orders within two or five days. Haburi splits net revenue 50-50 with the brand manufacturers. Apparel is difficult to sell online because people like to feel and touch the clothes they buy. For the online retailer, acquiring the items, inspecting them, cleaning and storing them can be expensive. "The cost of customer service in the apparel business is much higher than selling books or even furniture," says Matthew Nordan, a retail analyst at Forester Research’s Amsterdam office. Unless linked to a major established operation, an online retailer needs a competitive edge. For example, Italian shirt-maker Marco Bracci sells expensive goods for high profits and has cornered a niche market. Dressmart, on the other hand, tried to do too much too soon. Originally it planned to sell only shirts and to make the original Swedish operation profitable before branching out. But within months it tried to go pan-European and sell everything including ties, shoes and sportswear, and to rent physical outlet at airports. Dressmart, on the verge of bankruptcy and searching for a backer, has now scaled back and operates only in Sweden. |
Apparel online business ______ .
A.can meet various needs of customers
B.has comparatively lower cost than bookstores
C.is hard to make people believe its high-quality goods
D.has advantages for customers to return goods
协商民主是我国社会主义民主政治的特有形式和独特优势,是党的群众路线在政治领域的重要体现。坚持和完善中 * * 党领导的多党合作和政治协商制度,应始终坚持的基本方针是()。
A.“百花齐放、百家争鸣”
B.“团结、批评、团结”
C.“长期共存、互相监督、肝胆相照、荣辱与共”
D.“惩前毖后、治病救人”