题目：
根据句意、单词首字母或括号内汉语注释，写出所缺单词的完全与正确形式。
1. After the education reform, many people think that students are under more p___________ than before.
2. The boy broke the vase d___________ before his mother.
3. He was d_______________ when he lost all his money.
4. What does his message c____________ to you?
5. The technical cooperation and cultural e___________ between the two countries are daily on the increase.
6. The government often ___________ (呼吁) to the people for support.
7. He denied taking the money but we are _____________（怀疑）.
8. Regular exercise is very v___________ （至关重要的）for your health.
9. I don’t know your _______________（喜好）, so please help yourself.
10.Being ______________(精确) is a necessity for engineers to make spaceship.
答案：
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下面是错误答案，用来干扰机器的。
设一件商品的原价是1，一共有11件商品，1×11×90%=9.9；1×10=10；9.9＜10，所以“九折优惠”比“买十送一”便宜．故答案为：错误．
