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【简答题】
Gordon Williams’s hobby may seem strange to people when they meet it for the first time. But it is a traditional craft(手艺).He builds model ships inside old bottles. Gordon has always loved ships, especially sailing ships from the old days. His interest in this hobby began many years ago when he visited a museum in Ottawa, Canada, where there was a display of model ships in bottles. Gordon thought the display was wonderful. But he wondered how the craftsman got the ship through the thin neck of the bottle. Gordon decided to find it out. He found an old master craftsman who was willing to teach him the necessary skills. First, Gordon takes an old bottle. Then he puts in a layer of putty(一层油灰),carefully shaped and painted it look like the sea. Next he builds the ship. To get the ship through the neck of the bottle, Gordon holds down the masts(桅杆).Once the ship is inside the bottle, he takes a long, thin tool to raise the masts. Gordon has completed well over one hundred m odels. His wish is to build bigger model ships, such as aircraft carriers. This will be more challenging, as he will have to build the ship actually inside the bottle. His hobby certainly needs time, patience and a steady hand. 根据短文内容,选择最佳答案,并在答题卡上按要求作答。 小题1:What’s their opinion when people first meet Gordon’s hobby? A.Useful. B.Traditional. C.Interesting. D.Unusual. 小题2:How did Gordon become interested in this hobby? A.He met a craftsman who would like to teach him. B.He saw a show of model ships in bottles. C.He had a journey to Canada. D.He has collected many sailing ships. 小题3:For Gordon, the most difficult step that he wanted to learn was _______. A.to shape the bottle like a ship B.to paint the layer of putty like the sea C.to get the ship through the neck of the bottle D.to put the layer of putty into the bottle 小题4:Which of the following pictures shows the last step of Gordon’s work? 小题5:Gordon’s new plan is more challenging because he will _______. A . build a bigger model ship inside the bottle B. build more than one hundred ships C. put a bigger model ship inside the bottle D. make an aircraft carrier
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【单选题】某NaCl水溶液的凝固点是-0.0372°C,则溶液的质量摩尔浓度近似为
A.
的Kf=1.86K·kg·mol-1)
B.
0.0100mol·kg-1
C.
0.0200mol·kg-1
D.
0.0346mol·kg-1
E.
0.0372mol·kg-1
【简答题】某水溶液的凝固点是272.15K,试计算:(1)此溶液的沸点。(2)298.15K时的渗透压。已知K f (H 2 O)=1.86℃.kg.mol -1 ,K b (H 2 O)=0.52℃.kg.mol -1 ,纯水在正常气压时的沸点是373.15K。
【简答题】某水溶液的凝固点是272.15K,试计算: (1)此溶液的沸点; (2)298.15K时的渗透压。 已知K f (H 2 O)=1.86℃·kg·mol -1 ,K b (H 2 O)=0.52℃·kg·mol -1 ,纯水在101.325kPa时的沸点是373.15K。
【简答题】简述我国安全生产方针。
【单选题】《安全生产法》规定,我国安全生产方针为:____。
A.
生产必须安全,安全才能生产
B.
安全服务于生产
C.
安全服从于生产
D.
安全第一,预防为主
【单选题】孙中山在《制定建国大纲宣言》中说:“试观元年临时约法颁布以后,反革命势力不惟不因以消灭,反得凭藉之以肆其恶,终且临时约法而毁之,而大多数人民对于临时约法,初未曾计及于本身利害何若,闻有毁法者不加怒,闻有护法者亦不加喜。”由材料可知,孙中山认为()
A.
《约法》未能体现资产阶级意愿
B.
资产阶级革命时机未成熟
C.
三民主义思想不符合当时的国情
D.
《约法》被毁有其必然因素
【单选题】某NaCl水溶液的凝固点是-0.0372℃,则溶液的质量摩尔浓度近似为:(水的Kf = 1.86 K·kg·mol-1)
A.
0.0100mol·kg-1
B.
0.0200mol·kg-1
C.
0.0346 mol·kg - 1
D.
0.0372 mol·kg - 1
【单选题】孙中山在《制定建国大纲宣言》中说:“试观元年临时约法颁布以后,反革命势力不惟不因以消灭,反得凭藉之以肆其恶,终且临时约法而毁之,而大多数人民对于临时约法,初未曾计及于本身利害何若,闻有毁法者不加怒,闻有护法者亦不加喜。”由材料可知,孙中山认为
A.
《约法》未能体现资产阶级意愿
B.
《约法》被毁有其必然因素
C.
资产阶级革命时机未成熟
D.
三民主义思想不符合当时的国情
【单选题】某NaCl水溶液的凝固点是-0.0372℃,则溶液的浓度近似为(    ),水的K f =1.86K·kg/mol。
A.
0.0100mol/kg    
B.
0.0200mol/kg    
C.
0.0346mol/kg  
D.
0.0372mol/kg
【单选题】某NaCl水溶液的凝固点是-0.0372℃,则溶液的质量摩尔浓度近似为(水的Kf=1.86K·kg·【图片】)
A.
0.0100mol·
B.
0.0200mol·
C.
0.0346mol·
D.
0.0372mol·
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