| Mrs. Luth Li was a Chinese woman living
in Singapore. She named her baby girl Patsy Li. This name in Chinese means
"white plum blossom". When Patsy Li was six years old, the Japanese attacked
Singapore. Mrs. Li and Patsy Li escaped on a ship which was sunk. Mrs. Li placed
Patsy Li on a bit of floating wreckage. Later Mrs. Li was saved, but the little
girl could not be found. Many months after, four thousand miles away, a group of United States Marines found a little Chinese girl. No one could tell how she had got there. She refused to talk or give her name. The c A. White apple blossom. B. White peach blossom. C. White pear blossom. D. White plum blossom. [单项选择]冷油器油侧压力应一般（）水侧压力。
A. 大于； B. 小于； C. 等于； D. 略小于。 [判断题]公众存款人对银行的约束作用表现在存款人可以通过监督，增加银行的竞争压力。 ( )
A.正确 B.错误 [单选题]属于单位工程（）管理内容的资料，编号中的分部、子分部工程代号可用“00”代替。
A.整体 B.特殊 C.偶然 D.可能发生 [判断题] 在周边无任何防护设施或防护设施不能满足防护要求的临空状态下进行的高处作业叫做悬空作业。
A.正确 B.错误 [多选题]第 543 题, 本小题 1 分
两部制电价由（）两部分构成 A. 功率因数调整电费 B. 电度电价 C. 电度电费 D. 基本电价 [简答题]从旅游资源的内容属性来看，旅游资源可分为哪几类？
[单项选择]雇主占有绝大多数决策权的雇佣关系的管辖形式是( )。
A. 权力分享式的管辖形式 B. 单一层次的管辖形式 C. 雇员掌握决策权的管辖形式 D. 三方分享决策权的形式 [单项选择]提出社会观察学习理论的是（ ）
A. 沃尔夫 B. 斯金纳 C. 巴甫洛夫 D. 班都拉 E. 华生 [单项选择]奶牛（马、犬、猫、猪）正常体温（脉搏、心率、呼吸、动脉压）值范围应该是（℃）
A. 37.5～39.0 B. 38.5～39.5 C. 37.5～39.5 D. 38.0～39.5 E. 37.5～38.5 [单选题]确定癌的主要依据是
A.转移多见 B.癌细胞弥散分布 C.老年人发病 D.外生性生长 E.癌细胞浸润性生长形成巢 [单选题]生产经营单位应当建立从业人员安全生产教育和培训档案。安全生产教育和培训记录应当由( )签名。
A.单位负责人 B.培训机构 C.从业人员本人 D.专职安全管理人员 [填空题]912、动车组运行中过分相发现“主断”无法断开时，须（ ）通过电分相。
[单选题]水体资源种类很多,但并不是所有的水体都适于作为给水水源,如海水因( )含量较高,处理难度大,不适于作为给水水源。
A.硬度 B.酸度 C.盐分 D.浊度 [多选题]建筑幕墙用铝塑复合板的剥离强度判定标准为（ ）。
A.A、各组试件的平均剥离强度的算术平均值 B.B、各组试件的最小剥离强度中的最小值 C.C、各组试件的平均剥离强度的中间值 D.D、各组试件的最小剥离强度。 [单项选择]磁共振(MRI)图像上，表现非常低的信号强度的是
A. 脂肪 B. 髓质骨 C. 皮质骨 D. 肌肉 E. 透明软骨 [单选题]气瓶运输(含装卸)时,下列行为应禁止的是()。
A.氧气瓶与油脂物质和可燃气体钢瓶同车运输 B.不可用起重机直接吊运钢瓶 C.夏季运输应有遮阳设施,适当覆盖,避免曝晒 [单选题]大学生利用课余时间打工
the future of press
Can you hear This?
When something creates a sound wave in a room or an auditorium, listeners hear the sound wave directly from the source. They also hear the reflections as the sound bounces off the walls, floor, and ceiling. These are called the reflected wave or reverberant(反射的)sound, which can be heard even after the sound is no longer coming from the source.
The reverberation time of an auditorium is determined by the volume or interior size of the auditorium. It is also determined by how well or how poorly the walls, ceiling, floor, and contents of the room (including the people) absorb sound. There is no ideal reverberation time. Because each use of an auditorium calls for different reverberation. Speech needs to be understood clearly: therefore rooms used for talking must have a short reverberation time. The full-sound performance of music such as Wagner operas or Mahler symphonies should have a long reverberation time. The light, rapid musical passages of Bach or Mozart need a reverberation time somewhere between.
Acoustic problems often are caused by poor auditorium design. Smooth, curved reflecting surfaces create large reflections. Parallel(平行的)walls reflect sound back and forth, creating a rapid, repetitive pulsing effect. Large pillars(柱)and corners can cause acoustic shadows as the sound waves try to pass around the object. Some of these problems can be solved by using absorbers and reflectors to change the reverberation time of a room. For example, hanging large reflectors, called clouds, over the performers will allow some sound frequencies to reflect and others to pass to achieve a pleasing mixture of sound.
文章(1~5)
This passage is mainly about_____
A.sound waves and their effects. B.the types of music orchestras play. C.walls of an auditorium. D.the design of an auditorium. [单项选择]有关系统性红斑狼疮（SIE）所致精神障碍，错误的有
A. 精神症状在疾病晚期多见 B. 精神症状具有特异性 C. 急性脑器质性精神障碍较多见 D. 可有焦虑、抑郁、社会退缩和人格解体症状 E. 可适当使用抗精神病药和心境稳定剂 [单选题]胸痛的性质多种多样，如( )引起的多呈烧灼感。
A.心绞痛 B.气胸 C.食管炎 D.胸膜炎 [判断题]绝对压力低于大气压力时，用真空表测的的压力称为真空压力或叫真空度。
[判断题]钢梁联结系的作用，是把两片主桁架联结形成一个稳定的空间体系，并承受横向荷载。( )
A.正确 B.错误 我来回答: 提交
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