饮用1瓶啤酒,相当于排放了()Kg二氧化碳 A.0.21 B.0.22 C.

题型:单项选择题

问题:

饮用1瓶啤酒,相当于排放了()Kg二氧化碳

A.0.21

B.0.22

C.0.23

考点:节能减排知识竞赛节能减排知识节能减排知识题库
题型:单项选择题

交叉杆端头螺栓紧固力矩转8AG、转8G、转K2型为(),转K1型为()。

题型:单项选择题
A successful scientist is generally a good observer.  He makes full 36  of the facts he observes.  He doesn’t accept ideas which are not  37   on obvious facts,  and therefore refuses to accept authority as the only   38   for truth.  He always  39    ideas carefully and makes experiments to prove them.
The rise of    40    science may perhaps be considered to    41   as far back as the    42    of Roger Bacon,  the wonderful philosopher of Oxford,  who live    43    the years 1214 and 1292.  He was probably the first in the Middle    44    to suggest that we must learn science    45    observing and experimenting on the things around us,  and he himself    46   many important discoveries.
Galileo,  however,  who lived more than 300 years later (1564-1642),  was the greatest of several great men,     47    in Italy,  France,  Germany,  or England,  began by    48    to show how many important    49    could be discovered by observation.  Before Galileo,  learned men believed that large bodies fell more    50    towards the earth than small ones,     51    Aristotle said so.  But Galileo,  going to the    52     of the leaning Tower of Pisa,  let fall two  53    stones and proved Aristotle was wrong.  It was Galileo’s    54    of going direct to Nature,  and proving our    55    and theories by experiment,  that has led to all the discoveries of modern science.
小题1:
A.useB.timeC.speedD.trust
小题2:
A.workedB.basedC.livedD.written
小题3:
A.reasonB.causeC.adviceD.result
小题4:
A.thinksB.checksC.hasD.learn
小题5:
A.naturalB.physicalC.ancientD.modern
小题6:
A.dateB.keepC.lookD.take
小题7:
A.studyB.timeC.yearD.birth
小题8:
A.bothB.eachC.betweenD.among
小题9:
A.SchoolsB.AgesC.DaysD.Count
小题10:
A.inB.withC.onD.by
小题11:
A.didB.madeC.tookD.gave
小题12:
A.whoB.whenC.thatD.where
小题13:
A.waysB.degreesC.levelsD.chance
小题14:
A.truthsB.problemsC.peopleD.subjects
小题15:
A.slowlyB.rapidlyC.lightlyD.heavily
小题16:
A.althoughB.becauseC.whenD.If
小题17:
A.placeB.footC.topD.ceiling
小题18:
A.bigB.smallC.equalD.unequal
小题19:
A.spiritB.skillC.theoryD.discovery
小题20:
A.plansB.opinions C.worldD.ability
题型:单项选择题

细菌内毒素的特征是( )。

A.只有革兰阴性菌产生

B.细菌在生长过程中释放

C.少数革兰阳性菌产生

D.抗原性强

E.不耐热

题型:单项选择题

白钨矿在紫外光照射下()。

题型:单项选择题

调查中收集每个被抽中单元个体数据的过程是指()。

A.数据整理

B.数据分析

C.数据收集

D.数据发布

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