皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
研究人员指出, 术语“生物降解”这个词的使用是不规范的。 一些生产厂家说。这些产品如果在物理上发生了变化,则是可以生物降解的,它们一旦与其它物质混合,便会自然消失或者可以支持生物的成长。研究人员认为,真正的生物降解物质在需氧条件下可以分解成二氧化碳和水。在厌氧条件下它们则可以分解成甲烷和二氧化碳。然而,经他们试验的每个产品都不能降解,也不能达到上述标准。根据,划横线部分的意思是( )。
A.
“生物降解”不是一个科学术语
B.
“生物降解”这个说法名不符实
C.
“生物降解”在现实中根本不存在
D.
“生物降解”这个术语的运用有语法错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【判断题】女性皮下脂肪较厚,肌肉中慢肌纤维的比例高于男性,有利于长距离跑运动,但速度较男性慢
A.
正确
B.
错误
查看完整题目与答案
【单选题】A first magnitude star is（）.
A.
2.5 times as bright as a second magnitude star
B.
3 times as bright as a second magnitude star
C.
5 times as bright as a second magnitude star
D.
10 times as bright as a second magnitude star
查看完整题目与答案
【单选题】A double star is a star that（）.
A.
has a declination equal to twice that of the Sun
B.
comprises two stars that appear close together
C.
is twice as bright as a single star
D.
suddenly becomes much brighter and then fades
查看完整题目与答案
【单选题】If a star seems to be moving in a wavy line, we ______ it of being a double star.
A.
doubt
B.
believe
C.
guess
D.
suspect
查看完整题目与答案
【简答题】在数据状态下报表模块中有哪些主要功能?
查看完整题目与答案
【单选题】Many people think that English soccer star David Beckham is( )a pop star( )a player.
A.
mainly than
B.
either or
C.
very much not
D.
more of than
查看完整题目与答案
【单选题】What star is not seen in the sky?
A.
A film star
B.
fixed star
查看完整题目与答案
【判断题】女性皮下脂肪较厚,肌肉中慢肌纤维的比例高于男性,有利于长距离运动,但速度较男性慢。
A.
正确
B.
错误
查看完整题目与答案
【单选题】化学成分为蛋白质的增稠剂是( )
A.
琼脂
B.
明胶
C.
果胶
D.
黄原胶
查看完整题目与答案
【单选题】Muller believed that ______.
A.
the star orbits around the sun
B.
the star is disturbed by the Oort Cloud
C.
the star is throwing comets into the Oort Cloud
D.
the star is responsible for extinction of life on the Earth
查看完整题目与答案
相关题目：
【判断题】女性皮下脂肪较厚,肌肉中慢肌纤维的比例高于男性,有利于长距离跑运动,但速度较男性慢
A.
正确
B.
错误
查看完整题目与答案
【单选题】A first magnitude star is（）.
A.
2.5 times as bright as a second magnitude star
B.
3 times as bright as a second magnitude star
C.
5 times as bright as a second magnitude star
D.
10 times as bright as a second magnitude star
查看完整题目与答案
【单选题】A double star is a star that（）.
A.
has a declination equal to twice that of the Sun
B.
comprises two stars that appear close together
C.
is twice as bright as a single star
D.
suddenly becomes much brighter and then fades
查看完整题目与答案
【单选题】If a star seems to be moving in a wavy line, we ______ it of being a double star.
A.
doubt
B.
believe
C.
guess
D.
suspect
查看完整题目与答案
【简答题】在数据状态下报表模块中有哪些主要功能?
查看完整题目与答案
【单选题】Many people think that English soccer star David Beckham is( )a pop star( )a player.
A.
mainly than
B.
either or
C.
very much not
D.
more of than
查看完整题目与答案
【单选题】What star is not seen in the sky?
A.
A film star
B.
fixed star
查看完整题目与答案
【判断题】女性皮下脂肪较厚,肌肉中慢肌纤维的比例高于男性,有利于长距离运动,但速度较男性慢。
A.
正确
B.
错误
查看完整题目与答案
【单选题】化学成分为蛋白质的增稠剂是( )
A.
琼脂
B.
明胶
C.
果胶
D.
黄原胶
查看完整题目与答案
【单选题】Muller believed that ______.
A.
the star orbits around the sun
B.
the star is disturbed by the Oort Cloud
C.
the star is throwing comets into the Oort Cloud
D.
the star is responsible for extinction of life on the Earth
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题