问题
选择题
现将35 g锌粉与少量浓硫酸在加热条件下充分反应，共收集到11.2 L混合气体（标准状况），其质量为
19.6 g，则剩余锌粉的质量为 [ ]
A．1.0 g
B．2.0 g
C．2.5 g
D．3.5 g
答案
答案：C
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现将35 g锌粉与少量浓硫酸在加热条件下充分反应，共收集到11.2 L混合气体（标准状况），其质量为
19.6 g，则剩余锌粉的质量为 [ ]
A．1.0 g
B．2.0 g
C．2.5 g
D．3.5 g
答案：C
| Read and choose. 今天 Mike，Tom 和他们的父母一起乘火车去旅游了。阅读短文，选择确的答案。 |
| Mike and Tom are good friends. They often play together. Today is Sunday. It's a sunny day. They will go on a trip to Beijing with their parents. They are happy. On the train, they see many men, women and children. Some people are talking loudly. Some people are talking quietly. Some are sleeping. "Look! I see a goat." Mike says loudly. "Where? Please point to it." Tom asks. "There." Mike says. "I see. Not one goat. Five goats." Tom says. Mike says, "I like to take train. It's fun." "Me too. I like to go on a trip." Tom says. They have a happy Sunday. |
| 1. Mike and Tom are . |
[ ] |
| A. sisters B. brothers C. friends |
| 2. —What is the weather like? —It's . |
[ ] |
| A. sunny B. windy C. rainy |
| 3. They go on a trip with their . |
[ ] |
| A. grandfather B. parents C. teacher |
| 4. How many goats do they see? |
[ ] |
| A. Five. B. Ten. C. Seven |
| 5. Do they have a happy Sunday? |
[ ] |
| A. No. B. Yes. C. I don't know. |
| 6. Does Mike like to take train? |
[ ] |
| A. Yes. B. No. C. I don't know. |