问题的解决策略有（）、（），启发性策略又包括：手段-目的分析、逆向搜索、爬山法等。
题型：填空题
问题：
问题的解决策略有（）、（），启发性策略又包括：手段-目的分析、逆向搜索、爬山法等。
题型：填空题
阅读理解。
Jim is a five-year-old boy. He likes watermelons very much. It is very hot and he is thirsty now.
so he goes to the supermarket. He says to the salesman,“How much is this watermelon
“Ten yuan.," says the salesman.
“Wow, that's too expensive! "Jim says,
“You can buy half of it for six yuan.," the salesman says.
“OK. I'll take the other half for four yuan, "Jim says.
阅读短文，判断下列句子正(T)误(F)。
( )1. Jim is five years old.
( )2. In the story, Jim is hungry.
( )3. Jim goes to the supermarket.
( )4. The half of the watermelon is ten yuan.
( )5. Jim wants to take the other half for three yuan.