Holonyak's colleagues thought he would fail in his research on LEDs at the time when he started it.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

21.Singapore is a small state in the southeast of Asia           

22.According to the constitution of Singapore, the president of the state is selected           

23.Compared with people in other Asian countries, the Singapore           

24.Several technical colleges, and a teachers college are part of           

25.Though small, Singapore has an industry of its own and can           

A.live a better life

B.made up of more than 50 islands

C.Higher education institute

D.not by the Parliament, but by the people

E.produce goods of various kinds

F.have a big population

假設你的美國朋友Mike要去你的家鄉旅游，請給他寫一封電子郵件，告訴他:

1. 近期的天氣情況；

2. 需要注意的事項；

3. 你期待與他見面。

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