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【单选题】
能够引起颈动脉体和主动脉体化学感受器兴奋的适宜刺激是()
A.
CO 2 分压下降
B.
O 2 分压升高
C.
H + 浓度下降
D.
O 2 分压下降和CO 2 分压升高
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参考答案:
举一反三
【单选题】实验室用高锰酸钾制纯净氧气时,下列做法错误的是
A.
在试管口放一团棉花,防止高锰酸钾粉末进入导管
B.
把试管口略向下倾斜固定在铁架台上
C.
导管口开始有气泡放出时就立即收集,防止生成的气体跑掉
D.
用高锰酸钾制取所需氧气停止加热时,先要把导管移出水面,然后再熄灭酒精灯
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【单选题】I often go swimming with my father______Sunday.
A.
in
B.
on
C.
at
D.
of
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【简答题】句型转换。 l. My father often watches TV in the evening.(改为否定句) My father _____ _____ often TV in the evening. 2. The girls are waiting for a famous actor.(改为一般疑问句) _____ the girls waiting _____ a famous a...
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【单选题】I often see my mother __________ chess with my father after supper.
A.
to play
B.
played
C.
play
D.
playing
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【单选题】—Which of the caps will you take? —I’ll take _______,one for my father ,the other for my brother.
A.
neither
B.
both
C.
all
D.
either
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【单选题】企业所拥有的资产从财产权利归属来看,一部分属于投资者,一部分属于
A.
企业职工
B.
债权人
C.
债务人
D.
企业法人
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【单选题】My father often ________ Beijing for Shanghai.
A.
draws
B.
leaves
C.
cleans
D.
lives
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【判断题】发动机VTEC的切换不受车速限制。 ( )
A.
正确
B.
错误
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【单选题】My father often ( )football match on TV.
A.
looks
B.
sees
C.
watches
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【单选题】My father often ____books late in the evening.
A.
read
B.
reading
C.
reads
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相关题目:
【单选题】实验室用高锰酸钾制纯净氧气时,下列做法错误的是
A.
在试管口放一团棉花,防止高锰酸钾粉末进入导管
B.
把试管口略向下倾斜固定在铁架台上
C.
导管口开始有气泡放出时就立即收集,防止生成的气体跑掉
D.
用高锰酸钾制取所需氧气停止加热时,先要把导管移出水面,然后再熄灭酒精灯
查看完整题目与答案
【单选题】I often go swimming with my father______Sunday.
A.
in
B.
on
C.
at
D.
of
查看完整题目与答案
【简答题】句型转换。 l. My father often watches TV in the evening.(改为否定句) My father _____ _____ often TV in the evening. 2. The girls are waiting for a famous actor.(改为一般疑问句) _____ the girls waiting _____ a famous a...
查看完整题目与答案
【单选题】I often see my mother __________ chess with my father after supper.
A.
to play
B.
played
C.
play
D.
playing
查看完整题目与答案
【单选题】—Which of the caps will you take? —I’ll take _______,one for my father ,the other for my brother.
A.
neither
B.
both
C.
all
D.
either
查看完整题目与答案
【单选题】企业所拥有的资产从财产权利归属来看,一部分属于投资者,一部分属于
A.
企业职工
B.
债权人
C.
债务人
D.
企业法人
查看完整题目与答案
【单选题】My father often ________ Beijing for Shanghai.
A.
draws
B.
leaves
C.
cleans
D.
lives
查看完整题目与答案
【判断题】发动机VTEC的切换不受车速限制。 ( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】My father often ( )football match on TV.
A.
looks
B.
sees
C.
watches
查看完整题目与答案
【单选题】My father often ____books late in the evening.
A.
read
B.
reading
C.
reads
查看完整题目与答案
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