云杉（亚寒带代表性针叶树种）分布与全球气候变化密切相关。为研究北美洲气候变化，用恢复历史植物分布的方法，得到距今2.1万年（图甲）、距今5千年（图乙）和距今5百年（图丙）北美洲云杉主要分布区图，完成（1）~（2）题。

在中，，边上的高等于，则（   ）

    One of the easiest things in the world is to become a fault-finder. However, life can be (1) ______ when you are not busy finding fault with it.
    Several years ago I (2) ______ a letter from seventeen-year-old Kerry, who described herself as a world-class fault-finder, almost always(3) ______ by things. People were always doing things that annoyed her, and (4) ______ was ever good enough. She was highly self-critical and also found fault with her friends. She became a really(5) ______ person.
    Unfortunately, it took a horrible accident to change her(6) ______ Her best friend was seriously hurt in a car crash. What made it almost(7) ______ to deal with was that the day before the(8) ______ , Kerry had visited her friend and had spent the whole time criticizing her(9) ______ of boyfriends, the way she was living, the way she related to her mother, and various other things she felt she needed to (10) ______ It wasn't until her friend was badly hurt that Kerry became (11) ______ her habit of finding fault. Very quickly, she learned to appreciate life rather than to (12) ______ everything so harshly (刻薄) . She was able to transfer her new wisdom to other parts of her(13) ______ as well.
    Perhaps most of us aren't as extreme at fault-finding,(14) ______ when we're honest, we can be sharply(15) ______ of the world. I'm not suggesting you (16) ______ problems, or that you pretend things are(176) ______ than they are, but simply that you learn to allow things to be as they are(18) ______ most of the time, and especially when it's not a really big(19) ______ .
    Train yourself to "bite your tongue" , and with a little(20) ______ , you'll get really good at letting things go. And when you do, you'll get back your enthusiasm and love for life.

将函数图像上的点向左平移个单位长度得到点若位于函数的图像上，则（   ）

某路口人行横道的信号灯为红灯和绿灯交替出现，红灯持续时间为秒，若一名行人来到该路口遇到红灯，则至少需要等待秒才出现绿灯的概率为

若，则（   ）