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搜题
【多选题】
呼吸衰竭引起肺心病的主要机制是A.
肺泡缺氧引起肺小动脉收缩
B.
静脉回流量增加
C.
慢性缺氧使血量增多
D.
血液粘滞性增高
E.
缺氧和酸中毒使心肌收缩性降低
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【简答题】ADC0809 的分辨率是 _ _ ,若接入的参考电压为 5 .1 V ,则它能分辨的最小输入电压为 _
【单选题】We building the bridge by the end of next month. (B201212)
A.
are finishing
B.
have finished
C.
would finish
D.
will have finished
【简答题】We started building the factory last___.
【单选题】We building the bridge by the end of next month.
A.
are finishing
B.
have finished
C.
would finish
D.
will have finished
【单选题】ADC0809的分辨率是 ，当满量程电压为10V时，其最小分辨电压为 。
A.
8位、39.2mV
B.
8位、19.6mV
C.
12位、39.2mV
D.
12位、19.6mV
E.
10位、39.2mV
F.
10位、19.6mV
【单选题】We building the bridge by the end of next month. (201212)
A.
are finishing
B.
have finished
C.
would finish
D.
will have finished
【判断题】As we approached the work site, the workers were seen building the new house.
A.
正确
B.
错误
【单选题】ADC0809 的分辨率是 _______ ,当满量程电压为 10V 时,其最小分辨率电压为 _________
A.
8 位， 39.2mV
B.
8 位， 19.6mV
C.
12 位， 39.2mV
D.
12 位， 19.6mV
【简答题】ADC0809 的分辨率是 _ _V ,若接入的参考电压为 5 .1 V ,则它能分辨的最小输入电压为 _V
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