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提问人:网友f******g 发布时间:2022年12月5日 22:47
[单选题]

方丝弓矫治器通过各种功能曲产生不同的作用,用于纠正牙齿斜轴的是()

A.水平曲 B.匣形曲 C.垂直开大曲 D.垂直闭合曲 E.以上均不是

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计算机的字长取决于()。
A.数据总线的宽度B.地址总线的宽度C.控制总线的宽度D.通信总线的宽度
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生物兴趣小组的同学对某品种番茄的花进行人工去雄后,用不同浓度的生长素类似物2,4—D涂抹子房,得到的无籽番茄果实平均重量见下表。据表得出的正确结论是()
生物兴趣小组的同学对某品种番茄的花进行人工去雄后,用不同浓度的生长素类似物2,4—D涂抹子房,得到的无籽番茄果实平均重量见下表。据表得出的正确结论是()
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Part Ⅲ Reading Comprehension (40 minutes)


Section A


Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.

We all know there exists great void (空白) in the public educational system when it comes to   26   to STEM(Science, Technology, Engineering Mathematics) courses. One educator named Dori Roberts decided to do something to change this system. Dori taught high school engineering for 11 years. She noticed there was a real void in quality STEM education at all   27   of the public educational system. She said, "I started Engineering For Kids (EFK) after noticing a real lack of math, science and engineering programs to   28   my own kids in."

She decided to start an afterschool program where children    29    in STEM-based competitions. The club grew quickly and when it reached 180 members and the kids in the program won several state   30   , she decided to devote all her time to cultivating and   31   it. The global business EFK was born.

Dori began operating EFK out of her Virginia home, which she then expanded to   32   recreation centers. Today, the EFK program   33   over 144 branches in  32 states within the United States and in 21 countries. Sales have doubled from $5 million in 2014 to $10 million in 2015, with 25 new branches planned for 2016. The EFK website states, "Our nation is not    34    enough engineers. Our philosophy is to inspire kids at a young age to understand that engineering is a great    35    ."

A) attracted 

B) career 

C) championships 

D) degrees 

E) developing 

F) enroll 

G) exposure 

H) feasible 

I) feeding 

J) graduating 

K) interest 

L) levels 

M) local 

N) operates 

O) participated


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A . 3
B . 5
C . 7
D . 10
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凡是通过评审小组评审的管理创新项目立项,积()分。
A.10
B.20
C.30
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网络安全已经影响到()方面。
A.政治安全
B.个人安全
C.经济安全
D.军事安全
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冬季气温较低,寒冷的环境使机体代谢加快、散热量快,所以膳食中应增加()及脂肪含量。
A.糖
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现在快9点了。(10秒)
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C.340m/s
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