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【单选题】
吡咯在酸性介质、氧化剂存在条件下不稳定,容易发生一系列副反应。这些副反应中不包括( )
A.
聚合反应
B.
氧化反应
C.
水解反应
D.
开环反应
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举一反三
【单选题】I you an apology for what I did last night.
A.
own
B.
owe
C.
owe s
D.
owns
查看完整题目与答案
【单选题】Burt: I just had an interview yesterday. Raelene: __________ Burt: I think I did well.
A.
Oh, it was alright,
B.
Well, so what?
C.
Oh , how did it go?
D.
Well , wish you good luck.
查看完整题目与答案
【单选题】分泌胃酸的细胞为
A.
壁细胞
B.
主细胞
C.
颗粒细胞
D.
黏液细胞
E.
B细胞
查看完整题目与答案
【单选题】男，30岁，萎缩性胃炎患者，其壁细胞大量减少，胃酸缺乏，但胃泌素水平增高，该患者胃泌素分泌增多的原因
A.
交感神经兴奋
B.
迷走神经兴奋
C.
促胰液素分泌减少
D.
胃酸对G细胞的抑制减弱
E.
肠-胃反射减弱
查看完整题目与答案
【单选题】读懂总平面图并回答问题。图中新建楼房共( )层,其定位是按照实验楼北面与原有教学楼的北墙面对齐,新建楼房( )距原有实验楼16.5 m,( )与原有教学楼相距16m,北面有围墙。
A.
A
B.
B
C.
C
D.
D
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【单选题】—Did you finish your writing assignment(作业)? —Of course I did. ________, I have got an 'A'. [     ]
A.
Anyway
B.
On the way
C.
By the way
D.
Whatever
查看完整题目与答案
【单选题】妊娠期易合并贫血的原因下列哪项是不恰当的：
A.
妊娠期血容量增加，血浆增加多于红细胞增加，使血液稀释
B.
孕期对铁、叶酸、维生素B12需要量增加
C.
孕期需要铁剂增加，而饮食中的铁剂只有30%.被吸收，故应及时补充铁剂
D.
孕妇胃酸分泌减少，影响叶酸吸收
E.
孕妇肾血流量增加，肾小管回吸收减少，使叶酸排泄增多
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【简答题】He was struggling(费劲) to tie his shoes. I was struggling with whether I should help him. I did, and he was grateful. “Thank you,” he said. “I’m glad I could help. I just thought it would be easier for...
查看完整题目与答案
【单选题】关于胃酸分泌的描述,错误的是( )
A.
由壁细胞分泌
B.
分泌过程是耗能的
C.
质子泵在H + 分泌过程中起关键作用
D.
胃酸分泌增多时,血浆pH值下降
查看完整题目与答案
【单选题】A: You did an excellent job on the presentation.B: ______
A.
Yes. I did a lot of research to do it.
B.
No, it is not very satisfactory.
C.
Yes, I like this presentation very much.
D.
Thanks. I put a lot of time into it.
查看完整题目与答案
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【单选题】I you an apology for what I did last night.
A.
own
B.
owe
C.
owe s
D.
owns
查看完整题目与答案
【单选题】Burt: I just had an interview yesterday. Raelene: __________ Burt: I think I did well.
A.
Oh, it was alright,
B.
Well, so what?
C.
Oh , how did it go?
D.
Well , wish you good luck.
查看完整题目与答案
【单选题】分泌胃酸的细胞为
A.
壁细胞
B.
主细胞
C.
颗粒细胞
D.
黏液细胞
E.
B细胞
查看完整题目与答案
【单选题】男，30岁，萎缩性胃炎患者，其壁细胞大量减少，胃酸缺乏，但胃泌素水平增高，该患者胃泌素分泌增多的原因
A.
交感神经兴奋
B.
迷走神经兴奋
C.
促胰液素分泌减少
D.
胃酸对G细胞的抑制减弱
E.
肠-胃反射减弱
查看完整题目与答案
【单选题】读懂总平面图并回答问题。图中新建楼房共( )层,其定位是按照实验楼北面与原有教学楼的北墙面对齐,新建楼房( )距原有实验楼16.5 m,( )与原有教学楼相距16m,北面有围墙。
A.
A
B.
B
C.
C
D.
D
查看完整题目与答案
【单选题】—Did you finish your writing assignment(作业)? —Of course I did. ________, I have got an 'A'. [     ]
A.
Anyway
B.
On the way
C.
By the way
D.
Whatever
查看完整题目与答案
【单选题】妊娠期易合并贫血的原因下列哪项是不恰当的：
A.
妊娠期血容量增加，血浆增加多于红细胞增加，使血液稀释
B.
孕期对铁、叶酸、维生素B12需要量增加
C.
孕期需要铁剂增加，而饮食中的铁剂只有30%.被吸收，故应及时补充铁剂
D.
孕妇胃酸分泌减少，影响叶酸吸收
E.
孕妇肾血流量增加，肾小管回吸收减少，使叶酸排泄增多
查看完整题目与答案
【简答题】He was struggling(费劲) to tie his shoes. I was struggling with whether I should help him. I did, and he was grateful. “Thank you,” he said. “I’m glad I could help. I just thought it would be easier for...
查看完整题目与答案
【单选题】关于胃酸分泌的描述,错误的是( )
A.
由壁细胞分泌
B.
分泌过程是耗能的
C.
质子泵在H + 分泌过程中起关键作用
D.
胃酸分泌增多时,血浆pH值下降
查看完整题目与答案
【单选题】A: You did an excellent job on the presentation.B: ______
A.
Yes. I did a lot of research to do it.
B.
No, it is not very satisfactory.
C.
Yes, I like this presentation very much.
D.
Thanks. I put a lot of time into it.
查看完整题目与答案