皮皮学,免费搜题
登录
搜题
【单选题】
关于臭屁不响,响屁不臭的原因,下列说法错误的是?
A.
响屁意味着短期内消化分解淀粉类物质产生了大量氢气,气量比较大,因此出现响屁
B.
臭屁通常意味着气量比较小,这样经过肠道的时间比较长,
C.
肠道里异味物质较多,因此出现臭屁
D.
素食主义者通常很少放臭屁,是因为不吃肉类,这样蛋白质消化产生的小分子含硫含氮化合物比较少
E.
如果大量吃豆类食品以及红薯等食品,放又臭又响的屁的可能性比较大,因为这些食品既含有大量淀粉,又含有大量蛋白质。
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】忽略过滤介质阻力,滤饼不可压缩,恒压过滤时,过滤时间增加一倍,则过滤速率是原来的( )倍。
A.
1.414
B.
0.707
C.
2
D.
0.5
【简答题】气体传感器是一种能够感知环境中气体成分和( )的敏感器件。
【单选题】The class ( )( )( ) over, we had a ( )( )( )discussion.
A.
been ... heat
B.
being ... heated
C.
is ... heating
D.
be ... heated
【简答题】I phoned my first teacher timeand again when I heard that he was ill, yet couldn’t . A. getthrough     B. get along C. getover        D. get hold of
【单选题】The children talked so loudly at dinner table that I had to struggle ____.
A.
to be heard
B.
to have heard
C.
hearing
D.
being heard
【简答题】I was sleeping soundly last night when I was awakened by someone’s groans(呻吟).I listened , and heard it was from Sam,a student from Africa. I really wanted to go on sleeping, as I had insomnia(失眠)and ...
【单选题】Henry Durant put forward the idea because he
A.
had once fought in a war in Italy.
B.
had been wounded in a war.
C.
had assisted in treating the wounded.
D.
had seen the casualties and cruelties of war.
【单选题】The children talked so loudly at dinner table I had to struggle _________.
A.
to be heard
B.
to have heard
C.
hearing
D.
being heard
【单选题】忽略过滤介质阻力,滤饼不可压缩,恒压过滤时,操作压差增加一倍,则过滤速率是原来的( )倍。
A.
1
B.
2
C.
1.414
D.
0.5
【单选题】听力原文:M:You didn't go to the lecture last night either, did you? W:No,I had a severe headache. Q:What do we learn from this conversation? (13)
A.
The man went to the lecture, but the woman didn't.
B.
The woman went to the lecture, but the man didn't.
C.
Neither of speakers went to the lecture.
D.
Both speakers went to the lecture.
相关题目: