问题
单项选择题
复费率电能表可通过走字试验，连续运行。根据电台报时声，每隔（）测定1次计时误差，取3次测定的平均值，即为平均日计时误差。
A、24h
B、72h
C、6h
D、48h
答案
参考答案：A
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复费率电能表可通过走字试验，连续运行。根据电台报时声，每隔（）测定1次计时误差，取3次测定的平均值，即为平均日计时误差。
A、24h
B、72h
C、6h
D、48h
参考答案：A
| 任务型阅读。阅读下面短文，根据短文内容根据短文内容完成相关任务。 | |
| Every scientist has a childhood dream. A scientist in China once had a dream. He wished to grow a new type of rice. This new type of rice would be as big as peanuts. This person is Yuan Longping - "Father" of Hybrid rice (杂交水稻). Yuan Longping was born in 1930. He graduated from the Southwest Agricultural (农业) University in 1953. He came up with an idea for a Hybrid rice in the 1960s. Since then, he has devoted himself to research and to the development of new varieties. In 1973, together with other people, he succeeded in the development of Hybrid rice. This made China a worldwide leader in rice production (生产). In 1980, the technology (技术) for hybrid rice was introduced to the United States. Now his "super rice" has been introduced to more than 20 other countries. Because of Professor Yuan's hard work, China now produces enough rice to feed her people every year. Last November an online survey showed that most Chinese believed that Yuan deserved (应得) a Nobel peace prize. In his spare time, Yuan loves playing the violin and listening to music. Every night, he reads for half an hour before he goes to sleep. He likes swimming, too. It is said that Professor Yuan is one of the richest people in China. But he cares about nothing but his research.
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| 1. What was Yuan Longping's childhood dream? 2. What are Yuan Longping's hobbies? 3. The underlined word "her" in the 4th paragraph means _________. 4. Seven years after the successful development of Hybrid rice, it was introduced to _________. On the map No. is where the country is. 5. According to the following explanations of the word "variety" in a dictionary, the word "varieties" in 2nd paragraph probably means __________ in Chinese. |