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【单选题】
上消化道出血出现头晕、心悸、乏力症状，提示出血量大约在()A.
300-500ml
B.
100-300ml
C.
800-1000ml
D.
400-500ml
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反馈参考答案：
举一反三
【单选题】The police suspected him of carrying drugs so they________his bag，but found nothing.
A.
looked up
B.
turned in
C.
searched for
D.
went through
【单选题】新中国成立后,经国务院批准颁发的第一个幼儿教育法规是( )
A.
《幼儿园管理条例》
B.
《幼儿园工作规程》
C.
《幼儿园教育指导纲要（试行）》
D.
《国家中长期教育改革和发展规划纲要》（2010-2020年）
【单选题】The police suspected that the man had some connections with the robbery, and they kept a ______eye on his activities.
A.
close
B.
bright
C.
clear
D.
careful
【单选题】The police suspected him of carrying drugs so that they _____ his bags, but found nothing. [ ]
A.
looked up
B.
turned on
C.
looked for
D.
went through
【单选题】The police suspected that the sectary might be ______ of the murder.
A.
guilty
B.
conscious
C.
careful
D.
impatient
【简答题】CPU 响应 INTR 引脚上的中断请求的条件是 IF= .
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