柏拉图行政组织思想的主要观点有（） A.建立行政监督机构 B.“无学识者不能治国”

在为病人输液时，护士发现液体滴入不畅，观察注射部位无肿胀、疼痛，挤压输液管有回血，这种做法是因为

A．针尖滑出血管外

B．针尖斜面一半在血管内，一半在外

C．针梗完全阻塞

D．针梗不完全堵塞

E．针头斜面紧贴血管壁

患者男，38岁。发热、乏力、牙龈肿胀出血2个月入院。Hb70g/L、WBC1.1×10⁹/L、PLT34×10⁹/L、骨髓穿刺检查确诊为急性粒细胞白血病M5。经化疗3个疗程，骨髓达到完全缓解。1个月后又给大剂量化疗巩固治疗。化疗后患者出现骨髓抑制，三系细胞减少，给予输新鲜红细胞、手工分离血小板支持治疗。输血后1周，患者全身皮肤发红、瘙痒，可见斑丘疹、高热、黄疸、腹泻，为血水样便，每日2500ml。总胆红素105μmol／L，转氨酶345U/L。经对症治疗无效，患者死亡。

患者死于（）

A.急性白血病

B.骨髓抑制

C.过敏反应

D.输血相关性移植物抗宿主病

E.溶血反应

Smith was a landlord（地主）. He loved money very much and never gave anything to anybody. Soon he became rich. One day the weather was fine. There wasn't a cloud in the sky and the sun was very warm. The landlord was walking along a river with his friends, when, all of a sudden, he slipped（滑倒） and fell into it. He cried, "Help! Help!" One of his friends held out his hand and said, "Give me your hand and I will pull（拉） you out." The landlord's head went under the water and then came up again, but he did not give his hand to his friends. Then another of his friends tried but the same thing happened. Just then a farmer came over and saw all this. He knew the landlord very well. He said to the others, "Let me try." He held out his hand and said to the landlord," Take my hand and I will pull you out." Hearing this, the landlord took the farmer's hand, and in a minute the farmer pulled the landlord out of the water. All the others got very surprised at this and asked the farmer, "Why did he give his hand to you but not to us?" The farmer said, “You don't know your friend very well, When you say 'give' to him, he does nothing, but when you say 'take', he takes."

小题1:Smith was a ____.

A．doctor

B．farmer

C．landlord

D．waiter小题2:Smith became very rich, because he ____ gave anything to anybody.

A．always

B．never

C．often

D．sometimes小题3:One day Smith was walking along a ____ with his friends.

A．river

B．park

C．street

D．lake小题4:The rich man held ____ his hand when he heard "Take my hand."

A．in

B．into

C．down

D．out小题5:Who knew the rich man very well?

A．his friends

B．his wife

C．the farmer

D．his children

______年胡同游这一新颖的旅游项目推出后，成为北京城特有的旅游产品。P75

质量为800kg的电动车由静止开始沿平直公路行驶，达到的最大速度为15m/s，利用传感器测得此过程中不同时刻电动车的牵引力F与对应的速度v，并描绘出图象（图中AB、BO均为直线）。假设电动车行驶中所受的阻力恒定，下面关于电动车的检测数据说法正确的（   ）

A.车行驶中所受的阻力是2000N

B.车的额定功率是6000W

C.车做匀加速运动的加速度是2.5m/s²

D.AB过程车运动的时间为10s