下列微粒的结构示意图中氧族元素原子结构示意图的是( )

题型:选择题

问题:

下列微粒的结构示意图中氧族元素原子结构示意图的是(   )

考点:构成物质的粒子—分子、原子、离子元素周期律
题型:选择题

设某散列表的当前状态如下:

该散列表的负载因子约为()

A.0.37

B.0.42

C.0.58

D.0.73

题型:选择题

阅读理解。

     Some people bring out the best in you in a way that you might never have fully realized on your own.

My mom was one of those people.

     My father died when I was nine months old, making my mom a single mother at the age of eighteen.

While I was growing up, we lived a very hard life. We had little money, but my mom gave me a lot of

love. Each night, she sat me on her lap and spoke the words that would change my life, "Kemmons, you

are certain to be a great man and you can do anything in life if you work hard enough to get it."

At fourteen, I was hit by a car and the doctors said I would never walk again. Every day, my mother

spoke to me in her gentle, loving voice, telling me that no matter what those doctors said, I could walk

again if I wanted to. She drove that message so deep onto my heart that I finally believed her. A year

later, I returned to school-walking on my own!

     When the Great Depression (大萧条) hit, my mom lost her job. Then I left school to support the

both of us. At that moment, I was determined never to be poor again.

Over the years, I experienced various levels of business success. But the real turning point occurred on

a vacation I took with my wife and five kids in 1951. I was dissatisfied with the second-class hotels

available for families and was angry that they charged an extra $2for each child. That was too expensive

for the average American family. I told my wife that I was going to open a motel (汽车旅馆) for families

that would never charge extra for children. There were plenty of doubters at that time.

     Not surprisingly, mom was one of my strongest supporters. She worked behind the desk and even

designed the room style. As in any business, we experienced a lot of challenges. But with my mother's

words deeply rooted in my soul, I never doubted we would succeed. Fifteen years later, we had the

largest hotel system in the world-Holiday Inn. In 1979 my company had 1,759 inns in more than fifty

countries with an income of $ 1billion a year.

     You may not have started out life in the best situation. But if you can find a task in life worth working

for and believe in yourself, nothing can stop you.

1.  What caused Kemmons to start a motel by himself?

A. His terrible experience in the hotel.

B. His previous business success.

C. His mother's objection.

D. The doctor's words.

1. Which of the following best describes Kemmons' mother?

A. Modest, helpful, and hard-working.

B. Careful, helpful and beautiful.

C. Strict, sensitive and supportive.

D. Loving, supportive and strong-willed.

3. Which of the following led to Kemmons' success according to the passage?

A. A poor family, higher education, self-confidence and hard work.

B. Mom's encouragement, clear goals, self-confidence and hard work.

C. Mom's encouragement, a poor family, higher education, and clear goals.

D. Mom's encouragement, a poor family, higher education, and opportunities.

题型:选择题

不同容量的蓄电池串联充电,充电电流应以容量()的电池为基准进行选择。

A.最大

B.最小

C.平均容量

题型:选择题

某企业经海关批准从保税仓库内提取一批货物内销到国内市场,由于该批货物原进入保税仓库时为空运进口,故在报关单运输方式栏应填报“航空运输”。( )

题型:选择题

防烟分区划分构件可采用()

A.挡烟隔墙

B.挡烟梁

C.挡烟垂壁

D.防火门

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