单选题：The best title for this passage might be_____．

题目内容：

The best title for this passage might be_____． A．Inventive Mind
B．Effective Schooling
C．Ways of Thinking
D．Technological Advance

参考答案：

答案解析：

A safety analysis_______ the target as a potential danger． U

A safety analysis_______ the target as a potential danger． Unfortunately, it was

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