小明和小强一起研究颜料混合与色光混合的情况：小明将红、蓝两种色光射到白纸上，发现相互重叠的区域是品红颜色．小强将红、蓝两种颜料涂在白纸上，发现相互重叠的区域是紫颜色．这说明颜料混合的情况与色光混合的情况是____ 的．（选填“相同”或“不相同”）这是采用____ 的方法研究物理问题的．

下列句子中划线的词语使用不恰当的一项是（    ）

    Sally is 76 years old. She has no sons 1 daughters. Her husband（丈夫） died(死) 15 years 2. But she didn't move into an old people's home. She would like to look after(照顾) herself . Every morning she gets up early and goes for a walk in the park. She likes doing sports in the park, too .When she does these things, She feels very 3.

    Every day she spends two hours 4 children with their math. And she was a popular 5 before she retired(退休) from a middle school. When the children come 6 help, she is always happy to help them. She often says to the children,“I'm so 7 to be with you. You are all my kids. ”

    When people ask her 8, she says,“I love children and 9 staying with them. Every kid is a 10 for me. ”