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化简：4a 2 +3b 2 -2ab-4a 2 -4b 2 +2ba．
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举一反三
【单选题】(2004)25岁，初产妇。妊娠38周，规律宫缩12小时，自然破膜8小时，宫口开大3cm，胎心110次／分，胎心监护
A.
25岁，初产妇。妊娠38周，规律宫缩12小时，自然破膜8小时，宫口开大3cm，胎心110次／分，胎心监护有多个晚期减速出现。本例正确处置应是 A、急查尿雌激素／肌酐比值
B.
吸氧，严密观察产程进展
C.
静注25%葡萄糖液内加VitC
D.
静脉滴注缩宫素，加速产程
E.
立即行剖宫产术
【单选题】听力原文：Hello, everyone. My name is Justine and I' m your guide. Our tour this afternoon starts with a pleasant drive to historic Stonehenge. We will spend two hours there after we reach the North area o...
A.
Near the lake
B.
At the train station
C.
On a bus
D.
In an airport
【单选题】听力原文： Hello, everyone. I'm glad to be given a chance to tell you a story. Now I'll begin. Once there lived a lion in a forest. Every day he went about to look for food. The small animals in the forest...
A.
Near the lake.
B.
In a forest.
C.
By a hill.
【单选题】初产妇，25岁。妊娠38周，规律宫缩12小时，自然破膜8小时，宫口开大3cm，胎心110次／分，胎心监护有多个晚期减速出现。本例正确的处置应是
A.
急查尿雌激素肌酐比值
B.
吸氧，严密观察产程进展
C.
静脉注射25%葡萄糖液加维生素C
D.
静脉滴注缩宫素，加速产程进展
E.
立即行剖宫产术
【单选题】听力原文： Hello, everyone. My name's Brian Collins, and I work for Selectron Tools, a family firm based in Melbourne. We make kitchen utensils of the finest quality and offer them to buyers like you so th...
A.
Buyers for retail stores
B.
Manufacturers of kitchen appliances
C.
Employees of Selectron Tools
D.
Customers in a kitchen store
【单选题】25岁初产妇，妊娠38周，规律宫缩12小时，自然破膜8小时，宫口开大3cm，胎心110/分，胎心监护有多个晚期减速出现。本例正确处置应是
A.
急查尿雌激素/肌酐比值
B.
吸氧，严密观察产程进展
C.
静注25%葡萄糖液内加维生素C
D.
静脉滴注缩宫素,加速产程
E.
立即行剖宫产术
【单选题】听力原文：Hello, everyone. I'd like to tell you a story about Miss Richards. Miss Richards was a teacher at a school for boys and girls. She taught chemistry and physics from the lowest to the highest clas...
A.
A chemistry teacher.
B.
A physics teacher.
C.
A science teacher.
【单选题】25岁初产妇，妊娠38周，规律宫缩12小时，自然破膜8小时，宫口开大3cm，胎心110次/分，胎心监护有多个晚期减速出现。本例正确处置应是
A.
急查尿雌激素/肌酐比值
B.
吸氧，严密观察产程进展
C.
静注25%葡萄糖液内加维生素C
D.
静脉滴注缩宫紊，加速产程
E.
立即行剖宫产术
【单选题】下列关于内脏运动神经特点的叙述,哪项是错误的?
A.
自低级中枢至所支配的器官需两个神经元
B.
布于平滑肌.心肌和腺
C.
有交感和副交感两种纤维
D.
以神经干的形式分布
E.
一定程度上不受意识支配
【单选题】下列关于内脏运动神经特点的叙述,哪项是错误的?
A.
自低级中枢至所支配的器官需两个神经元
B.
布于平滑肌.心肌和腺
C.
有交感和副交感两种纤维
D.
以神经干的形式分布
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