问题
选择题
下列发明家中，哪位在电力技术发展方面做出了重大贡献？ [ ]
A．爱迪生
B．瓦特
C．史蒂芬逊
D．莱特兄弟
答案
答案：A
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下列发明家中，哪位在电力技术发展方面做出了重大贡献？ [ ]
A．爱迪生
B．瓦特
C．史蒂芬逊
D．莱特兄弟
答案：A
| 从方框内选出单词，用其适当形式填空。每空格限填一词，每词限用一次。 | |
2. Xiaomeng is a popular ___________ at CCTV Station. 3. —How do you know that autumn has arrived? —One way is that the tree ___________ become yellow or red. 4. Mary becomes ___________ than before because she exercises every day. 5. My friends and I may not have time to chat at school. But we can do it on QQ. It's very ___________ to our friendships. 6. People often say that money can't buy happiness (幸福). But some scientists think ___________. They say it can make us happy, but only if we spend it on someone else. |