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图8．5．8所示电路中，T2、T3为T1提供恒定偏置电流。T1集一基结电容为Ccb，与集一基结上电压vcb的关系为 1)试求输出电压v0(t)的瞬时频率ω(t)的表示式。 2)若C1=5 pF，C2=100 pF，L=1μH，VCC=10 V，kc=1．75 pF／V，vΩ(t)=(1V)cos103t，试写出v0(t)的表示式。
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【单选题】In the US, poll after poll has shown a majority in tavour of animal experimentation, even without statements about its value. Why is opinion in Britain so different.* I think that there are two reason...
A.
the idea that other methods can be substituted for animal research
B.
the claim that animal experiment is intentionally cruel
C.
the belief that all drugs developed with animal tests are dangerous
D.
the fact that scientists and medical organizations support animal experimentation
查看完整题目与答案
【单选题】What did the poll find out about wilfing?
A.
People under 25 were more likely to wilf than those aged 55 and above.
B.
Women confessed that wilfing damaged the relationship with their partners.
C.
Internet users spent no more than 30 percent of their Internet time wilfing.
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】What did the poll find out about wilfing?
A.
People under 25 were more likely to wilf than those aged 55 and above .
B.
Women confessed that wilfing damaged the relationship with their partner.
C.
Internet users spent no more than 30 percent of their Internet time wilfing.
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】患者,男,72岁,体重55kg,因“反复咳嗽、咳痰5年,气短2年,加重1周”之主诉入院。入院后患者呼吸困难加重,查体:T 36.8°C,BP 130/88mmHg,P 100bpm,R 28bpm,颈静脉怒张,桶状胸,双肺可闻及少量细湿性啰音,未闻及干啰音,双下肢轻度水肿。血气分析示轻度低氧血症。电解质:K+ 3.5mmol/L,Na+136mmol/L,Cl- 103mmol/L。血常规未见明显...
A.
莫西沙星
B.
呋塞米
C.
地塞米松
D.
噻托溴铵
E.
坦索罗辛
查看完整题目与答案
【单选题】What did Jim dream about? He dreamed about ______ .
A.
the zoo
B.
the train
C.
a big animal
查看完整题目与答案
【单选题】患者，男，72岁，体重55kg，因“反复咳嗽、咳痰5年，气短2年，加重1周”之主诉入院。入院后患者呼吸困难加重，查体：T为36.8℃，BP为130/88mmHg，P为100bpm，R为28bpm，颈静脉怒张，桶状胸，双肺可闻及少量细湿性啰音，未闻及干啰音，双下肢轻度水肿。血气分析示轻度低氧血症。电解质：K + 3.5mmol/L，Na + 136mmol/L，Cl - 103mmol/L。血常规未...
A.
莫西沙星
B.
呋塞米
C.
地塞米松
D.
噻托溴铵
E.
坦索罗辛
查看完整题目与答案
【单选题】What did the poll find out about wilfing( )
A.
People under 25 were more likely to wilf than those aged 55 and above.
B.
Women cinfessed that wilfing damged the relationship with their partners.
C.
Internet users spent no more than 30 percent of their Internet time wilfing
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】患者男，72岁。因“受凉后出现咳嗽、咳黄黏痰3天，逐渐加重伴气促1天”来诊。有多年吸烟史。肺功能检查：第1秒用力呼气量占用力肺活量比值40%。最可能的诊断是（）。
A.
急性支气管炎
B.
支气管哮喘
C.
肺间质纤维化
D.
慢性阻塞性肺疾病急性加重
E.
急性呼吸窘迫综合征
查看完整题目与答案
【单选题】In the US, poll after poll has shown a majority in favour of animal experimentation, even without statements about its value. Why is opinion in Britain so different? I think that there are two reasons...
A.
the idea that other methods can be substituted for animal research
B.
the claim that animal experiment is intentionally cruel
C.
the belief that all drugs developed with animal tests are dangerous
D.
the fact that scientists and medical organizations support animal experimentation
查看完整题目与答案
【简答题】What conclusion did the most recent poll draw?
查看完整题目与答案
相关题目：
【单选题】In the US, poll after poll has shown a majority in tavour of animal experimentation, even without statements about its value. Why is opinion in Britain so different.* I think that there are two reason...
A.
the idea that other methods can be substituted for animal research
B.
the claim that animal experiment is intentionally cruel
C.
the belief that all drugs developed with animal tests are dangerous
D.
the fact that scientists and medical organizations support animal experimentation
查看完整题目与答案
【单选题】What did the poll find out about wilfing?
A.
People under 25 were more likely to wilf than those aged 55 and above.
B.
Women confessed that wilfing damaged the relationship with their partners.
C.
Internet users spent no more than 30 percent of their Internet time wilfing.
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】What did the poll find out about wilfing?
A.
People under 25 were more likely to wilf than those aged 55 and above .
B.
Women confessed that wilfing damaged the relationship with their partner.
C.
Internet users spent no more than 30 percent of their Internet time wilfing.
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】患者,男,72岁,体重55kg,因“反复咳嗽、咳痰5年,气短2年,加重1周”之主诉入院。入院后患者呼吸困难加重,查体:T 36.8°C,BP 130/88mmHg,P 100bpm,R 28bpm,颈静脉怒张,桶状胸,双肺可闻及少量细湿性啰音,未闻及干啰音,双下肢轻度水肿。血气分析示轻度低氧血症。电解质:K+ 3.5mmol/L,Na+136mmol/L,Cl- 103mmol/L。血常规未见明显...
A.
莫西沙星
B.
呋塞米
C.
地塞米松
D.
噻托溴铵
E.
坦索罗辛
查看完整题目与答案
【单选题】What did Jim dream about? He dreamed about ______ .
A.
the zoo
B.
the train
C.
a big animal
查看完整题目与答案
【单选题】患者，男，72岁，体重55kg，因“反复咳嗽、咳痰5年，气短2年，加重1周”之主诉入院。入院后患者呼吸困难加重，查体：T为36.8℃，BP为130/88mmHg，P为100bpm，R为28bpm，颈静脉怒张，桶状胸，双肺可闻及少量细湿性啰音，未闻及干啰音，双下肢轻度水肿。血气分析示轻度低氧血症。电解质：K + 3.5mmol/L，Na + 136mmol/L，Cl - 103mmol/L。血常规未...
A.
莫西沙星
B.
呋塞米
C.
地塞米松
D.
噻托溴铵
E.
坦索罗辛
查看完整题目与答案
【单选题】What did the poll find out about wilfing( )
A.
People under 25 were more likely to wilf than those aged 55 and above.
B.
Women cinfessed that wilfing damged the relationship with their partners.
C.
Internet users spent no more than 30 percent of their Internet time wilfing
D.
Women tended to spend more time wilfing on the Internet than men.
查看完整题目与答案
【单选题】患者男，72岁。因“受凉后出现咳嗽、咳黄黏痰3天，逐渐加重伴气促1天”来诊。有多年吸烟史。肺功能检查：第1秒用力呼气量占用力肺活量比值40%。最可能的诊断是（）。
A.
急性支气管炎
B.
支气管哮喘
C.
肺间质纤维化
D.
慢性阻塞性肺疾病急性加重
E.
急性呼吸窘迫综合征
查看完整题目与答案
【单选题】In the US, poll after poll has shown a majority in favour of animal experimentation, even without statements about its value. Why is opinion in Britain so different? I think that there are two reasons...
A.
the idea that other methods can be substituted for animal research
B.
the claim that animal experiment is intentionally cruel
C.
the belief that all drugs developed with animal tests are dangerous
D.
the fact that scientists and medical organizations support animal experimentation
查看完整题目与答案
【简答题】What conclusion did the most recent poll draw?
查看完整题目与答案
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