首页
登录
职称英语
Even intelligent life on earth couldn’t send radio waves half a century ago. So
Even intelligent life on earth couldn’t send radio waves half a century ago. So
游客
2023-07-11
42
管理
问题
Even intelligent life on earth couldn’t send radio waves half a century ago. So it would be impossible for any intelligent beings to exist on any other planet at that time. [br] In terms of chemical structure, the passage mainly discusses three substances. They are ______.
选项
答案
protein,ammonia and silicone
解析
通读全文可知作者认为根据温度的不同,生物的化学基础就有所不同。它们分别是适于低温的“氨”,适于高温的“硅酮”和介于中间的“蛋白质”。
转载请注明原文地址:https://tihaiku.com/zcyy/2826816.html
相关试题推荐
[originaltext]Thetwentiethcenturyhasbroughtwithitmanyadvances.(32)
[originaltext]Thetwentiethcenturyhasbroughtwithitmanyadvances.(32)
Becausehisfamilycouldn’taffordhiseducationfee,Jimhadto_______________
Betweenastonishmentandjoy,shecouldn’thelp______intotears.A、burstB、burs
Thislovelyoldtownhas______(一种在大城市里找不到的魅力).acharmthatcouldn’tbefoundi
Inadditiontotheirmilitaryrole,thefortsofthenineteenthcenturyprov
Inadditiontotheirmilitaryrole,thefortsofthenineteenthcenturyprov
Inadditiontotheirmilitaryrole,thefortsofthenineteenthcenturyprov
Inadditiontotheirmilitaryrole,thefortsofthenineteenthcenturyprov
Withoutthattemporaryworking-site,thestudent____________(不可能按时完成设计).couldn’t
随机试题
[originaltext]W:Areyoubusythisevening?I’mgoingovertotheInternational
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Thelistenerhasagivenamountofenergytoexpendincompletingthecommun
曲线的渐近线有()A.一条 B.二条 C.三条 D.四条
下图所表示的实际地形为( )。 A.山脊 B.山谷 C.山凹 D.无法
挥发油的沸点范围大多在A.50~200℃ B.30~300℃ C.40~30
某药厂生产的复方丹参滴丸,为现今临床常用的心血管系统疾病药物,组成包括丹参、三七
针对被审计单位银行存款管理涉及的内部控制,下列说法中,不恰当的是()。A.
隧道施工中,发现水体颜色或悬着物发生变化时,应实行()管理。A.I级 B.Ⅱ级
女,68岁。清晨锻炼时突发心肌梗死,心跳骤停3分钟后实施心肺复苏,5分钟后心跳、
最新回复
(
0
)