The tango has probably traveled further and gone through more changes than almost (21) . African slaves brought the tango to Haiti and Cuba in the 18th century; in Cuba, the tango was influenced by the local Cuban dance, (22) "the Havana". From there (23) took the tango in Argentina in the 19th century, (24) it was changed once again and became popular in the (25) . It was an erotic dance of working class people by this time. (26) made it difficult for middle-class Europeans to accept.
(27) at the beginning of this century, the tango was refined, so that it (28) its erotic features. It was preformed in (29) casino ballrooms. The tango, in its sophisticated European (30) , became popular in England and in the USA. Once (31) , the tango became the rage in London and Paris. People began to (32) the Viennese waltz custom of dancing in restaurants between the (33) of a meal Pro
A. where
B. that
C. when
D. which
工作人员工作中正常活动范围与带电设备的安全距离，220 千伏为（ ）米。
| While there’s never a good age to get
cancer, people in their 20s and 30s can feel particularly isolated. The average
age of a cancer patient at diagnosis is 67. Children with cancer often are
treated at pediatric (小儿科的) cancer centers, but young adults have a tough time
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A. 凝固 B. 收缩 C. 铸造应力 D. 凝固和收缩 [多选题]下列各项中,属于产品总成本分析中相关指标比率分析法的是( )。
A.产值利润率 B.营业收人成本率 C.成本利润率 D.产值成本率 [单选题]女性，32岁，体型较胖，有胆囊炎病史，患者夜间右上腹持续性疼痛、阵发性加剧，向右肩背放射，胆囊区腹肌紧张、明显压痛、反跳痛。患者进晚餐时吃了如下食物，考虑是何种食物引起腹痛
A.水果 B.蔬菜 C.米饭 D.馒头 E.油煎鸡蛋 [判断题]吊装构件可能需要穿越外拉线时，应在构件上增设控制绳，以便在需要时使构件偏移，可以用调整或松出外拉线方法避让构件。
A.正确 B.错误 [判断题]( )特种设备安全监督管理的部门应当对学校、幼儿园以及医院、车站、客运码头、商场、体育场馆、展览馆、公园等公众聚集场所的电梯，实施重点安全监督检查。
A.正确 B.错误 [判断题]事关重大或紧急，可以在报告中夹带请示事项( )
A.正确 B.错误 [单选题] 排风是指在车列进行调车作业前，打开车列两端的折角塞门，放出车列( )和副风缸内压缩空气的作业过程。
A. 制动缸 B. 制动主管 C. 制动支管 D. 总风缸 我来回答: 提交
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