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【单选题】What does the man say he did at Paul's Lumber?
A.
Bought wood at a good price
B.
Purchased more than he needed
C.
Entered but did not buy anything
D.
Spoke to a customer representative
【简答题】The shopkeeper offered him the ______ (good)hat in the shop with the ______ (low)price.
【单选题】25℃时,等体积的 ① pH=2 H 2 SO 4 溶液 ②0.005mol/L Ba(OH) 2 溶液 ③pH=10 Na 2 CO 3 溶液④pH=4 NH 4 Cl溶液中,发生电离的水的物质的量之比是
A.
1:1:10 8 :10 8
B.
10 8 :10 8 :1:10 6
C.
10 8 : 5×10 7 :1:10 6
D.
1:2:10 8 :10 8
【判断题】005mol/L的H2SO4溶液pH值为2
A.
正确
B.
错误
【简答题】Shopkeeper: 小题1: Tim:      Hello, I’m looking for a pair of football boots for my father. Shopkeeper: Which color do you like? Tim:      I like the red ones. 小题2: Shopkeeper: They’re 150 yuan Tim:    ...
【简答题】25°C时,0.005mol/L的H2SO4溶液的pH_________________
【简答题】求室温条件下0.005mol/l的 H 2 SO 4 溶液的PH值
【单选题】当地时间2017年7月8日,在波兰历史文化名城克拉科夫举行的联合国教科文组织世界遗产委员会第41届会议上,又一项中国世界文化遗产提名项目成功列入《世界遗产名录》。它是______。
A.
“鼓浪屿:历史国际社区”
B.
甘肃敦煌莫高窟
C.
开平碉楼与古村落
D.
红河哈尼梯田文化景观
【简答题】A -------- original office B -------- accepted date C -------- posting stamp D -------- delivery stamp E -------- company name F -------- sender’s address G -------- customer code H -------- document ...
【简答题】005mol/L的H 2 SO 4 溶液的pH= 。
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