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高压系统中宜采用柱塞泵。



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  • 王某购买的商品房交付后即进行装修,后发现墙体严重渗水,客厅、卧室墙壁和卫生间的顶部及墙面各有二分之一的渗水面,造成装修后的壁纸卷曲、剥落开发商接到王某反映后,经检验,属于施工单位未按设计要求施工,漏做王某家楼土地面的防水层所致开发商应向王某提供哪些补救?(  )(A) 接受退房、返回购房款并赔偿损失 (B) 退房并按房价双倍赔偿 (C) 妥善修理并支付相应赔偿 (D) 按原房价在园地置换一套面积更大、楼层更好并且装修完毕的房屋经济法
  • 对享有外交特权和豁免权的外国人的刑事责任的解决途径是( )(A) 国际法院 (B) 政府间协商解决 (C) 外交途径 (D) 诉讼程序刑法学
  • 142、在微型计算机中,字符编码中______应用最普遍。 A.补码 B.BCD码 C.汉字编码 D.ASCII码计算机统考
  • 16、Almost everyone knows the meanings of Mr, Mrs and Miss. Mr is used before the names of men. Mrs is used for married women and Miss is for unmarried woman. But _ _ _ 21 _ _ _ is Ms? For some time, businessmen in the United States have used Ms before a woman's name when they do not know whether the woman is married or not. Today, however, many women like Ms better than Mrs or Miss. The word “ _ _ _ 22 _ _ _ ” does not tell us whether or not a man is married. So the women want to be equal to men in this way. These women feel that it is not important for people to know whether they are married or not. There are some problems with Ms. Not all the women like it. Some like the older ways of doing things. Some find _ _ _ 23 _ _ _ difficult to read. Ms _ _ _ 24 _ _ _ [miz]. Young women like it better than older women _ _ _ 25 _ _ _ . It is difficult to know whether most American women will use Ms in the future. What do you think of it?统考英语完型填空
  • 4、教育心理学研究的核心内容是( )。(A) 教学过程 (B) 学习过程 (C) 评价过程 (D) 反思过程教育心理学
  • 下列要求中不属于对伺服系统的技术要求的有________。A、灵敏度B、体积重量C、精度D、稳定性好且动态响应快机电一体化系统设计