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【简答题】
将pH=1的盐酸平均分成2份，1份加入与该盐酸物质的量浓度相同的适量NaOH溶液，另l份加适量水后，它们的pH都都升高了1，求加入NaOH溶液的体积与加入水的体积比．
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【单选题】听力原文：M: Could you tell me the timetable of the school bus? W: Well, the bus leaves here for the museum every one hour from 6:30 am. But on weekends it starts half an hour later. When did the second bu...
A.
At 7:30.
B.
At 8:00.
C.
At 8:30.
D.
At 9:00.
【简答题】A．Where the bus station is. B．If he can catch a bus that leaves for London. C．If he'll have time to catch the bus. D．When buses leave for London.
【单选题】听力原文：M: Can you tell me when the next bus leaves for Bloomington? W: The next bus leaves in three minutes. If you run, you might catch it. Q: What will the man probably do? (17)
A.
Catch the train.
B.
Hurry to catch the bus.
C.
Sit next to the bus stop.
D.
Fix his tom sleeve.
【单选题】听力原文：M: Could you tell me the timetable of the school bus? W: Well, tile bus leaves here for the campus every two hours from 6:30 am. But on weekends it starts half an hour later. When does the second...
A.
8:00.
B.
8:30.
C.
9:00.
【单选题】听力原文：M. Could you tell me when the next bus leaves for New York? W: The next bus leaves in three minutes; if you run you might catch it. Q: What will the man probably do? (4)
A.
Sit next to the bus stop.
B.
Fix his torn sleeve.
C.
Catch cold.
D.
Hurry to get the bus.
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