My family came to America from China many years ago. I was born in Oakland in 1989. Many young Chinese Americans don't learn much1because our parents2us to learn English very well.

    Chinese is a difficult language. If we don't speak it3, it's easy to forget. Writing is hard, too. We have to remember lots of words and thousands of characters (汉字). In English, there are only 26 4.

    At home, I5English with my family. But now, we speak some Cantonese (广东话) because we watch films 6 that language.

    My mom has come to love F4, a Chinese boy band (组合). They are in the film Meteor Garden (《流星花园》). We all7the TV series, and we learn Cantonese8 saying some funny words from the TV series to each other.

    It's fun to speak Cantonese with my Chinese friends. It 9funny because we can't say the words just right.

    Young Chinese Americans know that our culture (文化) is getting lost, so we try to10something.

已知$\overrightarrow{a}$与$\overrightarrow{b}$是两个不共线向量，且向量$\overrightarrow{a}$+λ$\overrightarrow{b}$与﹣（$\overrightarrow{b}$﹣3$\overrightarrow{a}$）共线，则λ=____ 

小明同学做电学实验，通过改变滑动变阻器R₃电阻的大小，依次记录的电压表和电流表的读数如表所示，分析表格中实验数据，可推断小明实验时所用的电路可能是下列电路图中的哪一个？