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一小区幼儿园采用VV型电缆电源进线三相四线制，电压等级为380V/220V，安装功率为103kW，cosα=0.5，t环=25℃，要求按发热条件选择电缆截面。(计算推荐需用系数 Kx取0.8)

答案

参考答案：VV-3×120+1×95知识模块：35kV及以下导体、电缆及架空线路的设计

多项选择题

下列属于发达国家推行的可持续发展战略的是（）。

A．通过技术和经济援助，转移污染工业，把危险性大和对环境具有潜在威胁的产品转移到发展中国家生产

B．在国家环保政策的调控下，增加环保资本和技术的投入，实行清洁化生产。

C．通过发展高科技和技术创新，提高增长的质量，减少单位产值中资源的消耗及污染的排放量。

D．维持的是其原有的高消费生活方式
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单项选择题

Honesty comes in many forms. First there’s self honesty. Is what people see the real article or do you appear through smoke and mirrors I find that if I try to be something I’m not, I feel unsure of myself and take out a part from my PBA (personal bank account). I love how singer Judy Garland put it, "Always be a first class version of yourself, instead of a second class version of somebody else. "
Then there’s honesty in our actions. Are you honest at school, with your parents, and with your boss If you’ve ever been dishonest, I think we all have, try being honest, and notice how whole it makes you feel. Remember, you can’t do wrong and feel right. This story by Jeff is agood example of that:
In my second year of study, there were three kids in my math class who didn’t do well. I was really good at it. I would charge them three dollars for each test that I helped them pass. I’d write on a little piece of paper all the right answers, and hand them off.
At first I felt like I was making money, kind of a nice job. I wasn’t thinking about how it could hurt all of us. After a while I realized I shouldn’t do that any more, because I wasn’t really helping them! They weren’t learning anything, and it would only get harder down the road. Cheating certainly wasn’t helping me.
It takes courage to be honest when people all around you who are getting away with cheating on tests, lying to their parents, and stealing at work. But, remember, every act of honesty is a deposit into your PBA and will build strength.

In the last paragraph the author mainly wants to express ______.

A．one must be brave to be honest
B．it’s difficult to be honest when others are not
C．one should be honest when making a deposit
D．honestly in one’s actions can help him in the future
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