问题
单项选择题
交流发电机刚开始发电时，其磁场的产生是靠（）
A.剩磁
B.他励
C.自励
D.永久磁铁
答案
参考答案：B
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交流发电机刚开始发电时，其磁场的产生是靠（）
A.剩磁
B.他励
C.自励
D.永久磁铁
参考答案：B
| Passage One Questions 26 to 28 are based on the conversation you have just heard. |
A．Because he registered the".ch" for China and sent the first e-mail in China.
B．Because he set up China’s first online comic dialogue website.
C．Because be provided integrated online services.
D．Because he was regarded as the father of Internet in China.