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What do you use to get around town? A car? A bike? Your feet ? perhaps you should try a segway! The Segway is perfect for short journeys. It’s an electric vehicle that consists of a platform between two wheels, with a pole that connects the platform to the handlebars. To ride it , you step up onto the platform, and control the Segway by moving your body. Lean forwards to go faster, and back-wards to slow down. On older models, direction was controlled by a twist grip(扭转把手)on the left handlebar. This varies the speeds between the two motors, and a decrease in the speed of the left wheel would turn the Segway to the left . With newer models you simply lean to the left or right. Meanwhile, a gyroscope (陀螺仪)detects your movements and prevents the machine from falling over. The Segway has a maximum speed of 19 km per hour and a range of about 38 km. after that, you need to plug it and recharge the battery. Segways are used for a variety of purposes. People with mobility problems can now enjoy walks in the country with their friends and family. Some golfers see them as an alternative to the golf cart . And dog owners now have an easier way to take the dog to the park. A few police forces use Segways, too. They allow officers to move quickly while maintaining contact with the public. They’re also becoming a common sight on airport . However, the most popular use is in tourism , particularly for city tours . Visit any major tourist city in summer, sit outside a cafe for a while and there’s a good chance you’ll see a group of tourists passing on Segways. 小题1:How do you turn to the left on a Segway of the new model? A.Lean to the left B.Adjust the twist grip C.Press the left bar D.Control the gyroscope 小题2:How far can you travel on a Segway at most? A.Less than 19 km B.About 19 km C.About 38 km D.Over 45 km 小题3:The Segway is most commonly used by . A.families B.golfers C.police D.tourists 小题4:Which of the following correctly shows the order in which information about the Segway is provided? A.Introduction→Ways of application→ structure→Principle of operation B.Introduction→ Principle of operation→Structure →Ways of application C.Introduction → Structure → Principle of operation →ways of application D.Structure→ Introduction→Principle of operation→Ways of application 小题5:Which of the following pictures shows the Segways being used?
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【单选题】在核磁共振碳谱中, 羰基 碳的化学位移范围是 () ppm
A.
0-60
B.
60-95
C.
100-165
D.
160-220
【简答题】(4分)浓硫酸在下列用途和现象中所表现的性质是 A.沸点高、难挥发 B.酸性 C.吸水性 D.脱水性 E.强氧化性 用途或现象 体现浓硫酸的性质 ( 1)浓硫酸使胆矾变成白色 (2)浓硫酸使蔗糖变”黑面包” (3)浓硫酸与铜片共热 (4)浓硫酸的木炭共热产生气体
【单选题】辛亥革命被认为是“中国民主进程的丰碑”,主要是因为这场革命( )。
A.
促进了民族资本主义的发展
B.
结束了存在两千多年的封建帝制
C.
掀起了“实业救国”的浪潮
D.
最终建立了资产阶级共和国
【多选题】“‘香满园’小包装食用油新品上市营销策划书”,关于这一标题,以下说法正确的是( )。
A.
单行形式
B.
概括策划书内容
C.
提示文章的主旨
D.
显示策划范围
E.
显示文种
【单选题】小肠绒毛的正确描述是
A.
由单层柱状上皮组成
B.
由吸收细胞的胞膜和胞质向细胞表面突出而成
C.
由粘膜下层、粘膜层向肠腔突出而成
D.
由肠壁全层向肠腔突出而成
E.
由单层柱状上皮和固有层向肠腔突出而成
【简答题】考察知识点【间断点】
【单选题】小肠绒毛的正确描述是
A.
由吸收细胞的胞膜和胞质向细胞表面突出而成
B.
由单层柱状上皮和固有层向肠腔突出而成
C.
由粘膜下层、粘膜层向肠腔突出而成
D.
由肠壁全层向肠腔突出而成
E.
由单层柱状上皮组成
【单选题】小肠绒毛的正确描述是
A.
由单层柱状上皮和固有层向肠腔突出而成
B.
由吸收细胞的胞膜和胞质向细胞表面突出而成
C.
由粘膜下层、粘膜层向肠腔突出而成
D.
由肠壁全层向肠腔突出而成
E.
由单层柱状上皮组成
【单选题】下列关于囊材的正确叙述是
A.
硬、软囊壳的材料都是明胶、甘油、水以及其它的药用材料,其比例、制备方法相同
B.
硬、软囊壳的材料都是明胶、甘油、水以及其它的药用材料,其比例、制备方法不相同
C.
硬、软囊壳的材料都是明胶、甘油、水以及其它的药用材料,其比例相同,制备方法不同
D.
硬、软囊壳的材料都是明胶、甘油、水以及其它的药用材料,其比例不同,制备方法相同
【单选题】小肠绒毛的正确描述是
A.
由单层柱状上皮组成
B.
由单层柱状上皮和固有层向肠腔突出而成
C.
由粘膜下层、粘膜层向肠腔突出而成
D.
由吸收细胞向肠腔突出而成
E.
由肠壁全层向肠腔突出而成
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