带有自检自校系统的自动轨道衡,()应进行一次自检自校工作,以减少误差,保证称量精度。

题型:单项选择题

问题:

带有自检自校系统的自动轨道衡,()应进行一次自检自校工作,以减少误差,保证称量精度。

A、每天

B、每两天

C、每三天

D、每星期

考点:综合计量工考试中级综合计量工中级综合计量工题库
题型:单项选择题

读图回答问题

图一 签署《凡尔赛和约》

图二 北京高校被捕学生回校
时受到同学们的热烈欢迎

请回答:(1)图一和图二分别反映了中外历史上的什么重大事件?_____________________________________________________________(2)图一和图二反映的事件之间存在怎样的关系?_____________________________________________________________(3)请举出图二反映的史实取得初步胜利的事件两例。_____________________________________________________________(4)图二反映的事件有什么历史意义?表现了怎样的民族精神?

_____________________________________________________________

题型:单项选择题

When people hear that I’m the youngest person to row solo across the Atlantic Ocean, they all have the same question: How did a 22-year old woman row a 19-foot boat for 70 days through high winds and crashing waves? Well, the biggest  difficulty for me wasn’t physical. By the time I decided to do the ocean row, I had already biked 3,300 miles cross-country, run across the Mojave Desert, and swum the 325-mile length of the Allegheny River. No, the tough part would be mental: How would I handle the loneliness, the boredom of the vast sea?

I set off on January 3, 2010. I set my sights on getting past the quarter-way mark, which would take about 20 days.

Day 20, January 22, was gray and cloudy. I could have done something to celebrate, such as treating myself to a chocolate bar. But I didn’t.

I was suffering from terrible loneliness. I hadn’t seen landing over two weeks. Every day was beginning to feel the same. Eating, rowing, sleeping, watch the sky, watch the ocean.

Then, around sunset, I saw something move on the horizon. They were dolphins! They circled my boat. Suddenly I felt so grateful. They had come to help me celebrate, just when I needed them. I rowed at full strength for the next 20 minutes with the dolphins around. By the time we went our separate ways, I was no longer lonely. Better yet, I knew I would be okay.

I did make it, all 2,817 miles. I hit the coast of Guyana, South America, on March 14, after 70 days and five hours at sea. My ocean row raised $70,000 for the Blue Planet Run Foundation, which funds drinking water programs around the world. I know some athletes spend the entire journey imagining the end, and that helps them get through. But for me, the secret is to focus on the moment, where you experience the personal growth—those moments of awareness of being connected to the sun, the weather, and the waves. And, on the best day of my life, those dolphins, which freed myself from terrible loneliness.

小题1:

Which is the step taken as part of preparation for the tough row?

A.swimming the 325-mile length of the river

B.answering the same question raised by people

C.running 3,300 miles cross-country

D.biking across the Mojave Desert小题2:

What does the underlined part mean?

A.I didn’t have any chocolate bar for energy.

B.I wasn’t in the mood to celebrate my first goal.

C.It’s a pity not to celebrate my passing the quarter of the way

D.It’s a pity not to treat myself to a chocolate bar on Day 20.小题3:

What can be implied from the last two paragraphs?

A.Imagination was an effective way to help me get through.

B.The Blue Planet Run Foundation helped me a lot.

C.The dolphins accompanied me to reach my destination

D.The unexpected dolphins swept away my loneliness小题4:

Which can be the best title of the passage?

A.The day I stopped being lonely

B.The only challenge for a 22-year old

C.How to overcome loneliness at sea.

D.How to row alone across the Atlantic

题型:单项选择题

隔离开关的主要作用包括()、隔离电源、拉合无电流或小电流电路。

A、拉合空载线路

B、倒闸操作

C、通断负荷电流

题型:单项选择题

视听资料

题型:单项选择题

发射外空物体时,导弹经过他国的领空,构成侵犯国家主权的行为。

更多题库