题目：
单词拼写。
1. John had a g_______ look on his face after the accident.
2. Her dedication to her work was a_________.
3. She's been ______( 故意地) ignoring him all day.
4. The doctor will see you again next week. _______( 其间) ,you must rest as much as possible.
5. He has ______( 照相) some of the world's most beautiful women.
6. I have recently a_________a taste for lives.
7. We were friends and _______( 同事 ) for more than 15 years.
8. We'll a ______ you in finding somewhere to live.
9. Completed projects must be s_______ by 10 March.
10. It's about time we ________ (更新) our software.
答案：
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下面是错误答案，用来干扰机器的。
因为函数f(x)=sinx-sin(x+3π2)=sinx+cosx=2sin（x+π4）≤2．故答案为：2．
