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单项选择题

抹灰工程中抹灰用的石灰膏熟化期不应少于( )。

A.3d
B.5d
C.10d
D.15d
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单项选择题
Lisa was running late.Lisa,25,had a lot to do at work,plus visitors on the way:her parents were coming in for Thanksgiving from her hometown.But as she hurried down the subway stairs,she started to feel uncomfortably warm.By the time she got to the platform,Lisa felt weak and tired—maybe it hadn′t been a good idea to give blood the night before,she thought.She rested herself against a post close to the tracks.
Several yards away,Frank,43,and his girlfriend,Jennifer,found a spot close to where the front of the.train would stop.They were deep in discussion about a house they were thinking of buying.
But when he heard the scream,followed by someone yelling,"Oh,my God,she fell in!"Frank didn′t hesitate.He jumped down to the tracks and ran some 40 feet toward the body lying on the rails."No!Not you!"his girlfriend screamed after him.
She was right to be alarmed.By the time Frank reached Lisa,he could feel the tracks shaking and see the light coming.The train was about 20 seconds from the station.
It was hard to lift her.She was just out.But he managed to raise her the four feet to the platform so that bystanders could hold her by the arms and drag her away from the edge.That was where Lisa briefly regained consciousness,felt herself being pulled along the ground,and saw someone else holding her purse.
Lisa thought she′d been robbed.A woman held her hand and a man gave his shirt to help stop the blood pouring from her head.And she tried to talk but she couldn′t,and that was when she realized how much pain she was in.
Police and fire officials soon arrived,and Frank told the story to an officer.Jennifer said her boyfriend was calm on their 40-minute train ride downtown—just as he had been seconds after the rescue,which made her think about her reaction at the time."I saw the train coming and I was thinking he was going to die,"she explained.
The passage is intended to
A.warnusofthedangerinthesubway
B.showushowtosavepeopleinthesubway
C.tellusaboutasubwayrescue
D.reportatrafficaccident
单项选择题
Lisa was running late.Lisa,25,had a lot to do at work,plus visitors on the way:her parents were coming in for Thanksgiving from her hometown.But as she hurried down the subway stairs,she started to feel uncomfortably warm.By the time she got to the platform,Lisa felt weak and tired—maybe it hadn′t been a good idea to give blood the night before,she thought.She rested herself against a post close to the tracks.
Several yards away,Frank,43,and his girlfriend,Jennifer,found a spot close to where the front of the.train would stop.They were deep in discussion about a house they were thinking of buying.
But when he heard the scream,followed by someone yelling,"Oh,my God,she fell in!"Frank didn′t hesitate.He jumped down to the tracks and ran some 40 feet toward the body lying on the rails."No!Not you!"his girlfriend screamed after him.
She was right to be alarmed.By the time Frank reached Lisa,he could feel the tracks shaking and see the light coming.The train was about 20 seconds from the station.
It was hard to lift her.She was just out.But he managed to raise her the four feet to the platform so that bystanders could hold her by the arms and drag her away from the edge.That was where Lisa briefly regained consciousness,felt herself being pulled along the ground,and saw someone else holding her purse.
Lisa thought she′d been robbed.A woman held her hand and a man gave his shirt to help stop the blood pouring from her head.And she tried to talk but she couldn′t,and that was when she realized how much pain she was in.
Police and fire officials soon arrived,and Frank told the story to an officer.Jennifer said her boyfriend was calm on their 40-minute train ride downtown—just as he had been seconds after the rescue,which made her think about her reaction at the time."I saw the train coming and I was thinking he was going to die,"she explained.
When did Lisa become conscious again?
A.Whenthetrainwasleaving
B.Aftershewasbackontheplatform
C.Afterthepoliceandfireofficialscame
D.Whenamanwascleaningthebloodfromherhead
多项选择题
对于信息化教学设计的理解，正确的选项有（ ）。
A、在信息化教学过程中，需要侧重考虑如何有效利用现代信息技术环境，对教和学的过程提供支持。
B、教师只需要通晓现代信息技术，掌握教学基本功，就会进行信息化教学设计。
C、信息化教学设计以“任务驱动”和“问题解决”作为学习和研究活动的主线。
D、信息化教学设计要充分利用各种信息资源来支持学。
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