【名词&注释】
博采众长(makefuluseofanyone ' sstrongpoint)、中华文化(chinese culture)、民主党派(democratic parties)、法律规定、奥林匹克(olympic)、北京奥运会开幕式、食品安全法(food safety law)、重要贡献(important contribution)、食品安全保障体系(food security system)、羽状复叶(pinnately compound leaf)
[单选题]52____
A. developen
B. apend
C. spread
D. ladea
查看答案&解析
点击获取本科目所有试题
举一反三：
[单选题]在2007年的全国政协大会上，九三学社提交了《关于进一步完善我国食品安全保障体系(food security system)的建议》明确提出我们应尽快出台食品安全法(food safety law)；2009年2月，全国人大常委会通过了食品安全法(food safety law)。这表明①民主党派具有法律规定的参政权
A. ②全国政协履行了参政议政的职能
B. ③全国政协及全国人大常委会共同行使立法权
C. ④民主党派对食品安全法(food safety law)的制定做出了重要贡献(important contribution)
D. ①②③
E. ①②④
F. ①③④
G. ②③④
[单选题]He must be helping the old man to water the flowers,_______?
A. is he
B. isn’t he
C. must he
D. mustn’t he
[单选题]According to the text, lungfish can________
A. breathe through its skin
B. move freely on dry land
C. remain alive out of water
D. be as active on land as in water
[单选题]北京奥运会开幕式将中华文化与奥林匹克精神完美结合，向世界奉献了一部奥运史上最华美的乐章。这充分说明①文化创新需要博采众长 ②中华文化具有包容性
A. ③外来文化是中华文化创新的基础 ④中华文化正在成为世界文化
B. ①② B．①③ C．②④ D．③④
[单选题]DBatteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
A. “To provide enough power, we need certain methods with high energy density(密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
B. Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanreal systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
C. “People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
D. His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
E. “The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
F. Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
G. 71. Which of the following is true of Jae Kwon?
H. He teaches chemistry at MU.
I. He developed a chemical battery.
J. He is working on a nuclear energy source.
K. He made a breakthrough in computer engineering.
[单选题]爬山虎靠( )向上攀。
A. 气生根
B. 茎卷须
C. 叶柄
D. 钩刺
[单选题]既有离瓣花又有合瓣花的是( )。
A. 茄科
B. 葫芦科
C. 蔷薇科
D. 菊科
[单选题]苏铁植物的营养叶为( )。
A. 鳞叶
B. 单叶，羽状深裂
C. 单叶，全缘
D. 一回羽状复叶(pinnately compound leaf)
本文链接：https://www.zhukaozhuanjia.com/download/kj5q0d.html
