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【简答题】
阅读理解。 A. The Double Ninth Festival It falls on the ninth of the ninth lunar month. People used to climb mountains on that day. So it is also called a festival of climbing mountains. Now it has become the Elders' Day. B. The Notting Hill Carnival Between 1956 and 1962 the British government asked people from the Caribbean to come to England. They worked in the hospitals and on trains and buses in London. Now every August in London there is a big carnival with music in the streets of Notting Hill. C. Christmas Day On December 25th, Christmas Day, people give presents, send cards and eat a special dinner at home. The children are usually very excited because they get presents from Father Christmas ( Santa Claus). In their houses,  people have a special tree with lights. D. Diwali Between 1962 and 1968, many people from India and Pakistan came to live and work in Britain. Their most important celebration every year is Diwali. This is a big festival of lights and dancing with special food and new clothes. Diwali is usually between October and November. E. Chinese New Year Like Diwali, this celebration moves its date each year. Usually it is in January or February. In many big cities the people build paper dragons, wear masks and have fireworks, lights and music in the street. (     )1. Father Christmas sends presents to children. (     )2. You can see fireworks in the street. (     )3. People wear new clothes. (     )4. They came from the Caribbean. (     )5. People always climb mountains with their friends.
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【多选题】心房和心室在心脏泵血活动中的作用
A.
房室压力梯度的形成主要来自心房收缩
B.
心室等容舒张期内,室内压大幅度下降
C.
心房收缩对于心室充盈起主要作用
D.
心房收缩进入心室的血量约占心室充盈总量的10-30%
E.
心室等容舒张期内,室内压不变
【单选题】下列哪项属于雌激素的生理作用
A.
· 促进水和钠排泄
B.
降低循环中胆固醇水平
C.
· 通过中枢神经系统产生升温作用
D.
· 抑制输卵管平滑肌节律性收缩的振幅
【多选题】常见光的方向(5分)
A.
顺光
B.
前侧光
C.
侧光
D.
侧逆光
E.
逆光
F.
顶光
G.
人造光
【单选题】下列哪项属于雌激素的生理作用:
A.
促进破骨细胞活动
B.
刺激血管平滑肌增殖
C.
促进神经细胞生长
D.
降低高密度脂蛋白浓度
【简答题】由CD4017制作的流水灯电路由NE555 模块、CD4017 模块以及MC1413驱动模块三部分组成。
【单选题】下列哪项属于雌激素的生理作用
A.
促进水和钠排泄
B.
降低循环中胆固醇水平
C.
通过中枢神经系统产生升温作用
D.
抑制输卵管平滑肌节律性收缩的振幅
E.
使宫颈口闭合
【多选题】选择题1: 本节课教学项目中4017十路流水灯电路的功能是:
A.
该电路主要由555构成的多谐振荡器产生脉冲提供给由4017组成的十进制移位计数器,进而控制十路LED灯。
B.
通电后,LED灯从上往下逐个点亮,直到第十个LED灯,循环往复,且移动的速度可以调节。
C.
本电路的设计原型来自店铺门口悬挂的高亮LED制作的店铺招牌,起到吸人眼球的营销效果。
D.
通过改变电路输出结构,可以实现多种显示效果,电路被广泛采用。
【单选题】下列哪项属于雌激素的生理作用是
A.
降低妊娠子宫对催产素的敏感性
B.
使子宫内膜增生
C.
使宫颈分泌黏稠黏液
D.
使腺体分泌增加
E.
具有安胎作用
【单选题】下列哪项属于雌激素的生理作用
A.
促进破骨细胞活动
B.
刺激血管平滑肌增殖
C.
促进神经细胞生长
D.
降低高密度脂蛋白浓度
E.
降低肾小管对Na+、水重吸收
【单选题】水闸自动监控系统的闸门现地控制单元由()、闸门开度测控仪、控制电器、逻辑保护电路、操作按钮、状态指示灯、电流电压表等组成。
A.
可编程控制器
B.
闸位传感器
C.
荷重传感器
D.
机械限位
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