梯形面积公式S=12(a+b)h中,用S、a、h表示b的表达式是( ) A.2sh

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问题:

梯形面积公式S=
1
2
(a+b)h
中,用S、a、h表示b的表达式是(  )
A.2sh-aB.
2s
h
-a
C.
2s
ah
D.
s
2h
-a
考点:写代数式
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属于临时备用医嘱的是

A.明晨全麻下行腹腔镜胆囊摘除术
B.氧气吸入prn
C.阿托品0.5mg Hst
D.Vit C 0.1g tid
E.索米痛0.5g pO SOS

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假设你将带你的外教老师在南京游玩一天,请根据下面的表格写一个游玩计划。要求文中必须包括所有要点,80词左右。
Time
Places and activities
Transport
7:00a.m.-11:00a.m.
Zijin Mountain, climbing the mountain
Taxi
11:30a.m.-12:30a.m.
A restaurant, having lunch
/
1:00p.m.-4:00p.m.
The Confucius Temple, eating local snacks, buying souvenirs(纪念品)
Bus
4:30p.m.-6:00p.m.
Xinjiekou, shopping
Underground
   We are going to have a busy day today.
                                                                                            
                                                                                    
                                                                                            
                                                                                        
                                                                                  
                                                                                 
                                                                                 
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在安装现场应将继电保护屏所有端子短接在一起,进行对地工频交流耐压试验,试验电压为1500V;1分钟

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微分方程x3y2dx-(2y+xysinx)dy=0是( )

A.可分离变量微分方程
B.一阶线性齐次微分方程
C.一阶线性非齐次微分方程
D.齐次微分方程

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JP

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