[单项选择]
Avalanche and Its Safety
An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are
(51) the biggest dangers in the mountains for both life and property.
All avalanches are caused by an over-burden of material, typically snowpack, that is too massive and unstable for the slope
(52) supports it. Determining the critical load, the amount of over-burden which is
(53) to cause an avalanche,
(54) a complex task involving the evaluation of a number of factors.
Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low
(55) of avalanche. Snow does not
(56) significantly on steep slopes; also, snow does no
(57) easily on fiat slopes. Human-triggered avalanches have the greatest incidence when the snow’s angle of rest is
(58) 35 and 45 degrees; the critical angle, the angle at which the human inci
A. are
B. will be
C. is
D. was
[填空题]
Passage Two
At two minutes to noon in September 1 of 1923, the great clock in Tokyo
stopped. (82) Tokyo Bay shook as if huge rug had been pulled from under it. (83)
Towered, above the bay, the 4000-meter Mount Fuji stood above a deep trench in
the sea. (84) It was from this trench where the earthquake came at a
magnitude of 8.3 on the Richter scale.
Huge waves swept over the
city. (85) Boats were driven inland, and buildings and people were dragged
out sea. (86) The tremors dislodged part of a hillside, which gave way,
brushing trains, stations and bodies the wafer below. (87) Three massive
shocks wrecked the of Tokyo and Yokohama and, during the next six hours,
there were more than 100 aftershocks.
The casualties were
enormous, but there were also some lucky survivors. (88) The most
remarkably was a woman who was having a bath in her room at the Tokyo Grand
Hotel. (89) As for the hotel collapsed, sh
[多项选择]关于热力管道的安装，说法正确的是（）。
A. 热力管道应设有坡度，汽、水同向流动的蒸汽管道坡度一般为0.005
B. 蒸汽支管应从主管上方或侧面接出，热水管应从主管下部或侧面接出
C. 水平管道变径时，应采用偏心异径管连接
D. 减压阀应水平安装在水平管道上
[单项选择]五味子（）
A. 关药
B. 浙药
C. 怀药
D. 广药
E. 秦药
[单选题]人事档案材料的编号一律采用（）来编码姓名笔画。
A.汉语拼音
B.四角号码
C.英文字母
D.阿拉伯数字
[填空题]用碳作还原剂时，还原生成的合金元素与铁互熔，因而（）了反应温度，还原反应易于进行。
[单项选择]一般来说，债券的期限越长，流动性溢价( )。
A. 越大
B. 越小
C. 不变
D. 不确定
[单项选择]
This is news on the hour, Ed Wilson reporting. The President and First Lady will visit Africa on a goodwill tour in May. They plan to visit eight African countries.
Reports from China say the Chinese want closer ties between China and the U.S. and Western Europe, A group of top Chinese scientists starts its ten-nation tour next month.
Here is in Miami, the major is still meeting with the leader of the Teacher’s Union to try to find a way to end the strike. City schools are still closed after two weeks.
In news about health, scientists in California report findings of a relationship between the drinking of coffee and increase of heart disease among women. According to the report in American Medical Journal, the five-year study shows this: Women who drink more than two cups of coffee a day have a greater chance of having heart disease than women who do not.
In sports, the Chargers lost again last night. The Wingers had better results. They beat
A. a radio report
B. an advertisement
C. an American Medical Journal
D. a newspaper
[单项选择]Apparent altitude is sextant altitude corrected for（）.
A. parallax and personal error
B. inaccuracies in the reading and reference level
C. visibility and magnitude
D. All of the above are correct
[单项选择]属于植物化学物的是（）
A. 矿物质
B. 碳水化合物
C. 多酚类
D. 维生素D
[判断题]2.87 机动车驾驶证记载和签注内容不包括准予驾驶机动车听力辅助条件。
A.正确
B.错误
[单项选择]为提高饱和软土地基的承载力以及减少地基的变形，下列地基处理方法（）比较适宜。
A. 振冲挤密法
[多项选择]根据现行税法规定，下列个人所得可以免征个人所得税的有( )。
A. 利息
B. 外籍个人从外商投资企业取得的股息、红利所得
C. 个人办理代扣代缴税款手续，按规定取得的扣缴手续费
D. 个人转让自用达两年以上，并且是惟一的家庭生活用房取得的所得
[单选题]轨检车公里小结报告中，某公里扣分合计为301分，则该公里为( )。
A.优良公里
B.合格公里
C.失格公里
D.达标公里
[单选题](44241)不是电能的优越性()(1.0分)
A.便于转换
B.便于输送和分配
C.便于控制
D.便于携带
[单项选择]持续静脉点滴硝酸甘油的起始剂量正确的是（）
A. 1～10μg/min
B. 10～20μg/min
C. 20～30μg/min
D. 30～40μg/min
E. 40～50μg/min
[判断题](36009)( )在利用桥面的纵.横十字线放线时，桥面的横向中心线即为其基础横向中心线。
A.正确
B.错误
[判断题]器件式分相绝缘器导线接头处应过渡平滑。( )(应知应会-铁总运[2017]9号,第一百四十六条)(网工)
A.正确
B.错误
[单选题]研究同一指标数值在时间上的变动情况，反映事物发展和变动的速度、趋势和规律的方法 叫做（ ）。
A.A:对比分析法。
B.
C.略
D.略
E.略
F.略
[单选题]抗菌增效剂是
A.甲氧苄啶
B.磺胺多辛
C.呋喃唑酮
D.磺胺嘧啶
E.环丙沙星
[单选题]脚手架上堆放的砖、石材料距墙身不得小于（ ）mm，荷重不得超过3kN/m2，砖侧放时不得超过3层。
A.A.200
B.B.300
C.C.400
D.D.500
[填空题]施工、维修、故障处理完毕，设备已恢复正常使用时，销记内容应有（ ）的字句。
[单选题] 半导体只读存储器(ROM)与半导体随机存储器(R( )M)的主要区别在于( )___。
A.ROM可以永久保存信息,RA.M在掉电后信息会丢失
B. ROM掉电后,信息会丢失,RA.M则不会
C. ROM是内存储器,RA.M是外存储器
D. RA.M是内存储器,ROM是外存储器
[单项选择]炒炙饮片的特征一般为
A. 桔梗
B. 党参
C. 木香
D. 川木香
E. 白术
[单项选择]患者女性，50岁。因剧烈眼痛、头痛、恶心、呕吐而急诊日入院。检查发现明显角膜水肿，前房浅，瞳孔中度开大，呈竖椭圆形，眼压明显升高。诊断为闭角型青光眼急性发作、青光眼危象。该病人宜立即给予的治疗药物是（）
A. 毛果芸香碱
B. 新斯的明
C. 阿托品
D. 毒扁豆碱
E. 去甲肾上腺素
[判断题]双重组织生活会制度指党员领导干部既要参加定期的党员领导干部班子民主生活会，又要参加所在党支部、党小组的组织生活会。
A.正确
B.错误
[单选题]用c=0.1000mol/L的NaOH标准滴定溶液滴定c=0.1000mol/L的H3PO4溶液时，下列说法正确的是()。已知H3PO4的三级离解常数分别为Ka1=7.6×10-3,Ka2=6.3×10-8,Ka3=4.4×10-13，
A.A.有一个滴定突跃，可滴定第一、二级电离的H+总和，但不可分步滴定
B.B.有两个滴定突跃，第一、二级电离可分步滴定
C.C.有三个滴定突跃，第一、二、三级电离均可分步滴定
D.D.有一个滴定突跃，第一级电离可被滴定，第二、三级电离不可滴定
[判断题]P-1351粗乙腈中乙腈含量控制在≥30%。
A.正确
B.错误
