一位旅客在匀速直线前进的轮船的甲板上竖直向上跳起，这位旅客的落地点（不计空气阻力

将下列物质序号填入相应位置：

①空气②氮气③稀有气体④氧气⑤二氧化硫⑥高锰酸钾⑦硫粉⑧河水⑨冰和水⑩矿泉水高锰酸钾分解后的固体

(1)属于混合物的是_________；

(2)属于纯净物的是________；

(3)属于单质的是_________；

(4)属于化合物的是________；

(5)属于氧化物的是___________。

如图所示，若图像中的纵坐标S、v、a分别表示位移、速度和加速度，则下列图像能表示匀变速运动的是 [ ]

A．

B．

C．

D．

原始开车时，甲醇罐区的甲醇直接补入到（）

A、C15201主洗段

B、C15203的H2S浓缩段

C、C15204的闪蒸段

D、C15205

个人贪污公款在5000千元以上不满1万元，犯罪以后有悔改表现，积极退赃的，对犯罪人 ( )。

A．应当减轻或免除处罚
B．应当从轻或减轻处罚
C．可以减轻处罚或免予刑事处罚
D．可以从轻或减轻处罚

Happiness Secrets for Tough Times

1. You don’t need an expert to tell you that relationships are critical to happiness. Not being the bread-winner anymore or not being able to fulfill your kid’s needs can weigh down hard on your family life. But the trick is to stop feeling guilty and focus on nurturing your loved ones. "I was at a psychology conference where an expert was talking about the effects of this economy on families and how parents can’t afford to buy their kids luxuries like toys anymore," says Sonja Lyubomirsky, author of The How of Happiness: A Scientific Approach to Getting the Life You Want. "But what they don’t realize is that kids don’t care about toys-what they care about is parents being grumpy and taking it out on them."
2. Now more than ever we need each other to survive. Lyubomirsky found that doing good things for friends, family, or strangers can make you happier. Think of practical, everyday gestures that can make someone’s life a little bit easier. For example, Lyubomirsky says, "Maybe now many of us can’t afford to take a cab to the airport, so offer to give a friend a ride."
3. "You could spend a lot of time ruminating," says Lyubomirsky. "But that just makes you feel even more pessimistic, more out of control, and affects your self esteem. Your relationships will suffer and your job performance will suffer." Get rid of pessimism. One of the most effective ways to cope when things are difficult is to adopt a positive thinking strategy. "What can I learn from this Times are tough, I’ve been furloughed at work, but I can spend more time with the kids, adopt a new hobby, or learn a new set of skills."
4. "if you find a happy person you will find a project," says Lyubomirsky. "Happy people all have goals they care about." Commit yourself to a project — whether it is a business you want to start or a dance you want to learn. But it’s also important to remember to be flexible in these times. Don’t get frustrated if circumstances are stopping you from meeting your goals. Adopt and change! "If your spouse has lost their job you might have to change your goal," says Lyubomirsky. "Or you might have to learn a whole new skill for a new job."
5. When times are tough, it’s easy to get skip your regular workouts in favor of moping in front of the TV and eating a bag of chips. Your thinking is "I have more important things to worry about right now than looking good." But carve out a small part of your day to give your body some TLC. It will go a long way in boosting your happiness. "Even if you can’t afford to go to the gym," Lyubomirsky says, "take time out to exercise at home or meditate."
A. Have a goal and be flexible
B. Find a new friend
C. Avoid over-thinking
D. Do some physical exercise
E. Help others
F. Focus on your relationships
G. Try to fulfill your kid’s needs

Paragraph 5 ______