题目

  How can we do something for the environment? A Dutchman will tell you.     Tommy Kleyn is an     61  (art) from Rotterdam, the Netherlands. Last year on his way to '  work, he would pass by a river bank where rubbish    62  _(collect). Seeing it, he made up his mind to start to pick up the rubbish.    63  he spent 30 minutes every day filling one garbage bag with rubbish,     64    (post) the pictures onto his Facebook , he got some help    65    .his friends. On  his Facebook page, Tommy said, Take 30 minutes out of your day    66    (fill)a tr某学校的研究性学习小组以“研究 xx 遗传病的遗传方式”为课题进行调查研究，最好选择调查何种遗传病以及采用的方法是（    ） A．白化病；在周围熟悉的4到10个家系中调查   B．红绿色盲；在患者家系中调查 C．青少年肤色；在学校内随机抽样调查    D．青少年型糖尿病；在患者家系中调查