[填空题]
Scientists in India have discovered a way to make bamboo
plants produce flowers in laboratory. The British{{U}} (36) {{/U}}Nature
recently reported the{{U}} (37) {{/U}}event. In the wild it can take as
long as one hundred and twenty years for some kinds of bamboo to flower, and
after the plant{{U}} (38) {{/U}}its seeds it dies. The bamboo plant is
used in many different ways. But because it takes so long to produce seeds,
scientists never{{U}} (39) {{/U}}it a traditional farm crop. The
recent{{U}} (40) {{/U}}in India may change that. The{{U}} (41)
{{/U}}was done at the National Chemical Laboratory in India. Three
scientists cut two hundred pieces from two different kinds of bamboo plants;
each was a few{{U}} (42) {{/U}}long. The tiny cuttings were placed in
the{{U}} (43) {{/U}}of coconuts milk, plant-growth hormone and other
nutrients. Just a few weeks later, flowers began to appear. {{U}} (44)
{{/U}}. Two weeks after that th
[单项选择]要求塑性好,冲击韧度高的焊缝应选用( )焊条。
A. 酸性
B. 碱性
C. 不锈钢
D. 铸铁
[单项选择]Engineering students are supposed to be examples of practicality and rationality, but when it comes to my college education I am an idealist and a fool In high school I wanted to be an electrical engineer and, of course, any sensible student with my aims would have chosen a college with a large engineering department, famous reputation and lots of good labs and research equipment. But that’s not what I did.
I chose to study engineering at a small liberal-arts (文科) university that doesn’t even offer a major in electrical engineering. Obviously, this was not a practical choice, I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system
to guide me in my career. I wanted to open my eyes and expand my vision by interacting with people who weren’t studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I bel
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist :
D. wanted to coordinate engineering with liberal-arts courses in college
[单选题]754.图 2 中温压一体化变送器面板标示电池电量的是( )。
A.1
B.2
C.3
D.4
[判断题]使用离子色谱法分析亚酸盐时,由于亚硝酸根不稳定,亚硝酸盐的标准使用液最好临用现配。
[单项选择]会计科目按提供指标的详细程度不同分为()。
A. 一级科目和二级科目
B. 二级科目与三级科目
C. 总分类科目和明细分类科目
D. 总账科目和二级科目
[单项选择]“博士”的名称,源于( )
A. 战国时代
B. 五代时期
C. 汉代
D. 唐朝
[单项选择]作为整体包括多个层次的含义,产品的质量属于产品的()含义
A. 形式
B. 核心
C. 实质
D. 延伸
[多选题]以下哪些属于《国网湖南省电力有限公司对外承揽工程安全监督管理规定》明确的公司各部门具体履行安全职责。( )
A.按照规定开展对外承揽安全监督检查,并认真督促整改。
B.督促对外承揽单位按照公司规定落实三级以上作业风险管控要求,开展四级作业风险视频督查;
C.指导对外承揽单位建立健全安全生产监督检查.隐患排查治理.应急管理工作机制,督促对外承揽单位实施施工现场全过程安全管理;
D.指导对外承揽单位实施突发事件应急抢险和事故救援;
[单项选择]科学发展观的本质和核心是
A. 统筹兼顾
B. 经济社会协调发展
C. 全面建设小康社会
D. 以人为本
[单选题]肝性脑病时脑组织乙酰胆碱的变化是
A. 由于肝脏合成胆碱脂酶减少,乙酰胆碱因分解减少而增加
B. 血氨增高抑制乙酰胆碱合成而使其减少
C. 分解减少与合成减少共同作用,其含量正常
D. 血氨使乙酰胆碱分解加速,其含量减少
E. 以上都不对
[多选题]口对口人工呼吸时,吹气的正确方法是 ( )
A.病人口唇包裹术者口唇
B.闭合鼻孔
C.吹气量至胸廓扩张时止
D.频率为8~12次min
E.每次吹气量500mL
[不定项选择题]强直性关节炎:
A.滑膜炎
B.附着点炎
C.小血管炎
D.泪腺炎
E.肌炎
[单项选择]在队列研究中,如果把非暴露组误认为是暴露组,则可产生以下哪类偏倚()
A. 选择偏倚
B. 混杂偏倚
C. 错分偏倚
D. 回忆偏倚
E. 随访偏倚
[单选题]党的十八届三中全会强调,在资源配置中起决定性作用的是__________。
A.政府
B.市场
C.企业
D.个人
[单选题] 223
默认情况下,STP协议中根桥的根路径开销一定是0。
A.对
B.错
[填空题]
{{B}}SECTION A{{/B}}
In this section you will hear a
minilecture. You will hear the lecture ONCE ONLY. While listening to the lecture
take notes on the important points. Your notes will not be marked, but you will
need them to complete a gap-filling task on ANSWER SHEET ONE after the
mini-lecture. Use the blank paper for note-taking.
Now listen
to the mini-lecture.
Did Chinese sailors really discover America before
Columbus A new exhibition sets the scene,
presenting new (1)_____. that
lends support to the assumptions made in"1421: The Year China
(1)_____
Discovered America"by Gavin Menzies.
"1421: The Year China Sailed the World, "is primarily a celebration of
(2)_____Zheng (2)_____
He’s seven maritime expeditions between 1405 and 1423. With a fleet of 317
ships and 28, 000
men, Zheng He is generally acknowledged as one of the great
naval explorers, but how far
[单选题] (单选题)常见的火源有七种类型,电炉属于( )。
A..高温物体
B..明火焰
C..电火花
D..化学反应放热
[单项选择]哪一年被广大观众誉为中央电视台的“直播年”()。
A. 1996年
B. 1997年
C. 1998年
D. 2000年
[单选题]3.657. 第657题个别电能表无法采集的原因应从电能表一侧来排查故障。——
A. 正确
B. 错误
[多选题]慢性肾衰竭病人需限制含钾高的饮食摄入,如
A.紫菜
B.蘑菇
C.干枣
D.油菜
E.马铃薯