题目内容
集成运算放大电路由一个输入端()
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Task 1 Work in pairs. Discuss the questions below.1. On what occasions do people send and receive invitations?
2. What information is usually included in an invitation?
Task 2 Read the invitations below and complete the following statements.1.The dinner for ________________________ will be held at Grand Hotel.2. Sarah invites her friends to ___________________.3. “RSVP” means ___________________________________________________.4. Bob invites Lisa to_______________.
2、缺省的世界坐标系的简称是( )。
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