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第一节 阅读短文,判断下列句子是否符合短文内容。符合的写(T),不符合的写(F)。 (共5小题,计10分) Los Angeles—Thousands of people waited in line on Thursday at Apple Stores, hoping to buy new iPhone 4. The new iPhone starts at $199 with a two-year renewal(换新)。 Randy Cruz, 25, waited in line at Los Angeles Apple Store at 10 p.m. Wednesday, and wanted to buy her new iPhone before going to work. Stores opened at 7 a.m. Her old oPhone was broken two months ago, and she waited for the new model, “I can work from it and have fun,” she sai D. Cruz was lucky and she got it, but hundreds of others waited in line on all sides of the shopping mall. By the end of the day, Apple’s latest iPhone was all sold out across the US, “It is working to get more phones. They can’t get her soon enough,” said Melissa O’Brien, Wal-Mart spokeswoman(代言人) Apple spokesman Steve Dowling wouldn’t say how quickly stores would get more phones. He said , “We are working hard to get them to everyone as quickly as possible. It will take about a month for stores to get fully stocked(储藏).” Apple said it sold 600,000 in early orders. 41. A lot of people waited in line at Los Angeles Apple Stores to buy iPone 4. 42. Randy Cruz lost her old iPhone on the way home two months ago. 43. Randy Cruz got the iPhon at Los Angeles Apple Store. 44. Steve Dowling said that they would get more iPhones to people as quickly as possible. 45. It will take about half a month for stores to get fully stocked.
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皮皮学刷刷变学霸
举一反三
【单选题】下列热化学方程式或说法正确的是 [     ]
A.
甲烷的燃烧热为△H=-890 kJ/mol,则甲烷燃烧的热化学方程式可表示为:CH 4 (g)+2O 2 (g)=CO 2 (g)+ 2H 2 O(g) △H=-890 kJ/mol
B.
500℃、30MPa下,将0.5 mol N 2 和1.5 mol H 2 置于密闭的容器中充分反应生成NH 3 (g),放热19.3 kJ,其热化学方程式为:N 2 (g)+3H 2 (g) 2NH 3 (g) △H=-38.6 kJ/mol
C.
已知:H 2 (g)+F 2 (g)=2HF(g) △H= -270 kJ/mol,则1mol氢气与1 mol氟气反应生成2 mol液态氟化氢放出的热量小于270 kJ
D.
在C中相同条件下,2 mol HF气体的能量小于1 mol 氢气与1mol氟气的能量总和
【单选题】一脂溶性成分的乙醚提取液,在回收乙醚过程中,哪一种操作是不正确的?
A.
在蒸除乙醚之前应先干燥去水
B.
“明”火直接加热
C.
不能用“明”火加热且室内不能有“明”火
D.
温度应控制在 30 ℃
【单选题】在《霍尔效应测磁场》实验中,存在多种效应,其产生得电压值极性只与磁场方向有关的是哪几种?( )
A.
厄廷豪森效应
B.
霍尔效应
C.
里纪-勒杜克效应
D.
不等位电势
【单选题】将十进制数327.25转换成十六进制数是( )。
A.
741.25
B.
147.4
C.
987.4
D.
789.01
【单选题】[2012·江门调研]下列热化学方程式中,正确的是(    )
A.
甲烷的燃烧热为-890.3kJ·mol -1 ,则甲烷燃烧的热化学方程式可表示为: CH 4 (g)+2O 2 (g)=CO 2 (g)+2H 2 O(g) Δ H =-890.3kJ·mol -1
B.
含20.0g的NaOH的稀溶液与稀盐酸完全中和,放出28.7kJ的热量,则稀醋酸和稀NaOH溶液反应的热化学方程式为:NaOH(aq)+CH 3 COOH(aq)=CH 3 COONa(aq)+H 2 O(l) △ H =-57.4 kJ·mol -1 D.已知:2Zn(s)+O 2 (g)=2ZnO(s)     Δ H =-701.0kJ/mol 2Hg(l)+O 2 (g)=2HgO(s)      Δ H =-181.6kJ/mol 则Zn(s)+HgO(s)=ZnO(s)+Hg(l) Δ H =-259.7 kJ·mol -1
【单选题】下列热化学方程式或离子方程式中,正确的是(  )
A.
25℃,101Kpa时,甲烷的燃烧热为890.3Kj?mol -1 ,则甲烷燃烧的热化学方程式可表示为:CH 4 (g)+2O 2 (g)=CO 2 (g)+2H 2 O(l);△H=-890.3Kj?mol -1
B.
500℃、30Mpa下,将0.5molN 2 和1.5molH 2 置于密闭的容器中充分反应生成NH 3 (g),放热19.3Kj,其热化学方程式为: N 2 (g)+3H 2 (g) 催化剂 500℃30MPa NH 3 (g);△H=-38.6Kj?mol -1
C.
氯化镁溶液与氨水反应:Mg 2+ +2OH - =Mg(OH) 2 ↓
D.
100Ml0.01moL/L稀NaOH溶液与100Ml0.01moL/L稀醋酸反应,热化学方程式可表示为:NaOH(aq)+CH 3 COOH(aq)=NaOOCCH 3 (aq)+H 2 O(l);△H=-57.3Kj/mol
【单选题】下列热化学方程式或离子方程式中,正确的是 [     ]
A.
25℃,101KPa时,甲烷的燃烧热为890.3kJ·mol -1 ,则甲烷燃烧的热化学方程式可表示为: CH 4 (g)+2O 2 (g)=CO 2 (g)+2H 2 O(l) △H=-890.3kJ·mol -1
B.
500℃、30MPa下,将0.5mol N 2 和1.5molH 2 置于密闭的容器中充分反应生成NH 3 (g),放热19.3kJ,其热化学方程式为: △H=-38.6kJ·mol -1
C.
氯化镁溶液与氨水反应:
D.
100mL0.01mol/L稀NaOH溶液与100mL0.01mol/L稀醋酸反应,热化学方程式可表示为: NaOH(aq)+CH 3 COOH(aq)=NaOOCCH 3 (aq)+H 2 O(l);△H=-57.3kJ/mol
【单选题】一脂溶性成分的乙醚提取液,在回收乙醚过程中,哪一种操作是不正确的 ( )
A.
在蒸除乙醚之前应先干燥去水
B.
“ 明 ” 火直接加热
C.
不能用 “ 明 ” 火加热且室内不能有 “ 明 ” 火
D.
温度应控制在 30℃ 左右
【判断题】清代的“选秀”秀女都是出自八旗中的。()
A.
正确
B.
错误
【单选题】下列热化学方程式或离子方程式中,正确的是(   )
A.
甲烷的燃烧热为890.3kJ·mol -1 ,则甲烷燃烧的热化学方程式可表示为: CH 4 (g)+2O 2 (g)=CO 2 (g)+2H 2 O(g);△H=-890.3kJ·mol -1
B.
500℃、30MPa下,将0.5mol N 2 和1.5molH 2 置于密闭的容器中充分反应生成NH 3 (g),放热19.3kJ,其热化学方程式为: △H=-38.6kJ·mol -1
C.
向明矾溶液中加入过量的氢氧化钡溶液:
D.
用浓盐酸酸化的KMnO 4 溶液与H 2 O 2 反应,证明H 2 O 2 具有还原性: 2MnO 4 - + 6H + + 5H 2 O 2 = 2Mn 2+ + 5O 2 ↑ + 8H 2 O
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