问题
不定项选择
| 不定项选择 |
| 下列说法中正确的是（ ） |
| A．炽热的固体、液体和高压气体发出的光形成连续光谱 B．各种原子的线状光谱中的明线和它吸收光谱中的暗线必定一一对应 C．气体发出的光只能产生明线光谱 D．甲物质发出的白光通过乙物质的蒸气形成的是甲物质的吸收光谱 |
答案
AB
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| 不定项选择 |
| 下列说法中正确的是（ ） |
| A．炽热的固体、液体和高压气体发出的光形成连续光谱 B．各种原子的线状光谱中的明线和它吸收光谱中的暗线必定一一对应 C．气体发出的光只能产生明线光谱 D．甲物质发出的白光通过乙物质的蒸气形成的是甲物质的吸收光谱 |
AB
| 完形填空。 | ||||
| Last night, I was waiting for a taxi. After 5 minutes, I was 1 . The driver seemed to be angry. I asked him what the 2 was. He said he had just come from the airport without a 3 , which was basically $70 in lost fare. Over the course of the ride, the anger 4 died down. He mentioned he had read an article saying the 5 people are the ones that give, so he hoped he'd have more 6 to give in his life. I was starting to 7 being with him! We continued talking about why 8 is so beneficial both to the giver and the receiver and different ways to 9 it. As we arrived at my destination, I 10 my fare. But I pulled out an extra $20 and said, "Since we've been talking about this whole time, I wanted to share that 11 with you. I've already paid my fare, but here's an extra little bit. You can 12 it, since you're already down $70 from the airport. But if you want to experience the 13 of the gift, then tell the next passenger in this taxi that their ride is a gift from another and they can 14 their gratitude (感激) in whatever way." The man turned toward me, tears in his eyes, and said, "Sir, I have a better 15 . You give that $20 to a 16 person around here and I'll treat the next passenger with a 17 ride myself. Wow. This man was 18 10 minutes ago. I got out and walked around trying to 19 someone who needed help before heading to my destination. It was an honor meeting that driver and 20 the lesson of how everyone is capable of giving. | ||||
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