连续方程是()在流体力学中的体现 A.动量守恒定律 B.能量守恒定律 C.牛顿第二定

题型:单项选择题

问题:

连续方程是()在流体力学中的体现

A.动量守恒定律

B.能量守恒定律

C.牛顿第二定律

D.质量守恒定律

考点:航空、航天科学技术空气动力学空气动力学题库
题型:单项选择题

单词拼写(共10小题;每小题1分,满分10分)

根据下列句子及所给汉语注释,写出空缺处各单词的正确形式。(每空只写一词)

(请将答案写在答题卡上的指定位置)

小题1: No word was exchanged, and they set off in _____(沉默) down the road.

小题2: What _____(失望) him was that the results were contrary to what he had expected.         

小题3: I found the shop where this kind of camera was sold after passing through four _____ (街区).                                                                  

小题4:Jerry cleaned all of the desks, which were very _____(灰尘).         

小题5:Put your ______(香烟) out — you mustn’t smoke in the gas station.   

小题6: _____(远程) education makes it possible to study anytime, anywhere.                                                                                                         

小题7: After the race, I really didn’t have the _____(力气) to help you carry it.                                                       

小题8: The old man entered the room, _____(搀扶) by his grandson.   

小题9: I missed the smell of my mum’s cooking _____(漂浮) out from the kitchen.            

小题10:He is ____(遭受) from a guilty feeling because he hasn’t told his mother he crashed her car.                                  

题型:单项选择题

何某,男,32岁。性情急躁易怒,失眠,头痛目赤3个月。诉近年炒股,由于股市行情变化莫测,股价猛跌,心情不畅,急躁易怒,夜不成眠,服西药安定片,可睡数小时,次日神魂颠倒,头痛目赤,头部烘热。日久口干口苦,食不知味,大便秘结,胸闷胁胀。经中医诊断用逍遥颗粒。

逍遥颗粒中柴胡的作用是()

A.辛凉清轻,善疏肝散热

B.辛散甘补而温,善补血活血

C.辛散苦泄微寒,入肝、胆经,善疏肝解郁

D.酸甘微寒,善养肝血、柔肝止痛

E.辛散苦泄微寒,善养肝血、柔肝止痛

题型:单项选择题

挂接地线时,人体不得触及接地线,以保障人身安全。()

题型:单项选择题

简述脊髓灰质炎病毒的致病性与免疫性

题型:单项选择题

导致销售会议执行中失效的原因中,以下哪个不属于执行中的原因()

A.受外界干扰

B.会议地点不当,会议场地设备欠佳

C.资料准备不充分却贸然决策

D.视听器材发生故障

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