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【简答题】
半径为 30cm 的飞轮,从静止开始以 0.5rad × s –2 的角加速度匀加速转动,则飞轮边缘上一点在转过 240 0 时的切向加速度为 ;法向加速度为 。
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【单选题】关于霍乱的输液标准,下列哪一项不正确( )
A.
隐性感染者可不输液
B.
轻型脱水不明显者输注2000~3000ml
C.
轻度脱水者输注3000~4000ml
D.
中度脱水者输注4000~8000ml
E.
重度脱水者输注8000~12000ml
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
心电图呈低电压
C.
胸部X线示肺透亮度增加，肋间隙增宽
D.
血气分析PaO2＜60mmHg，PaCO2＞50mmHg
E.
肺功能FEV1／FVC＜60％
查看完整题目与答案
【判断题】一定量的理想气体做功的表达式为W=PV。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Brain interventions aim to change the functions of the brain, including physical, surgical, pharmacological, mental, ____________, and __________________ interventions.
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
胸部 X 线示肺透亮度增加，肋间隙增宽
C.
血气分析 PaO2 ＜ 60mmHg ， PaCO2 ＞ 50mmHg
D.
肺功能 FEV1 ／ FVC ＜ 60 ％， MVV 实测值／预计值＜ 60 ％
查看完整题目与答案
【单选题】A TIME columnist bears witness to an operation to help triplets with cerebral palsy walk like other boys Cindy Hickman nearly bled to death the day she gave birth-three months prematurely-to her tripl...
A.
both the triplets and their mother nearly died
B.
they didn't have cerebral palsy
C.
doctors didn't believe they were going to survive
D.
they received medical intervention like brain shunts
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
胸部 X 线示肺透亮度增加，肋间隙增宽
C.
肺功能 FEV1 ／ FVC ＜ 60 ％， MVV 实测值／预计值＜ 60 ％
D.
血气分析 PaO2 ＜ 60mmHg ， PaCO2 ＞ 50mmHg
查看完整题目与答案
【简答题】煤的挥发份测定实验中,称取一定量的____干燥煤样,放在带盖的 中,在____温度下,隔绝空气加热____。以____占煤样的质量分数,减去该煤样的____作为挥发份产率。
查看完整题目与答案
【判断题】Brain interventions call attention to something hard to fathom & often overlooked: what we like, what we are like, who we are, in some very real sense, are dependent on the motion of matter & ebb & fl...
A.
正确
B.
错误
查看完整题目与答案
【判断题】After all, if we are merely material beings whose personality can be altered & even controlled by fairly simple technologies such as deep brain stimulation, is there really a there? Is there some immu...
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】关于霍乱的输液标准,下列哪一项不正确( )
A.
隐性感染者可不输液
B.
轻型脱水不明显者输注2000~3000ml
C.
轻度脱水者输注3000~4000ml
D.
中度脱水者输注4000~8000ml
E.
重度脱水者输注8000~12000ml
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
心电图呈低电压
C.
胸部X线示肺透亮度增加，肋间隙增宽
D.
血气分析PaO2＜60mmHg，PaCO2＞50mmHg
E.
肺功能FEV1／FVC＜60％
查看完整题目与答案
【判断题】一定量的理想气体做功的表达式为W=PV。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Brain interventions aim to change the functions of the brain, including physical, surgical, pharmacological, mental, ____________, and __________________ interventions.
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
胸部 X 线示肺透亮度增加，肋间隙增宽
C.
血气分析 PaO2 ＜ 60mmHg ， PaCO2 ＞ 50mmHg
D.
肺功能 FEV1 ／ FVC ＜ 60 ％， MVV 实测值／预计值＜ 60 ％
查看完整题目与答案
【单选题】A TIME columnist bears witness to an operation to help triplets with cerebral palsy walk like other boys Cindy Hickman nearly bled to death the day she gave birth-three months prematurely-to her tripl...
A.
both the triplets and their mother nearly died
B.
they didn't have cerebral palsy
C.
doctors didn't believe they were going to survive
D.
they received medical intervention like brain shunts
查看完整题目与答案
【单选题】下列各项检查对诊断慢性阻塞性肺疾病最有意义的是
A.
体格检查有桶状胸、紫绀
B.
胸部 X 线示肺透亮度增加，肋间隙增宽
C.
肺功能 FEV1 ／ FVC ＜ 60 ％， MVV 实测值／预计值＜ 60 ％
D.
血气分析 PaO2 ＜ 60mmHg ， PaCO2 ＞ 50mmHg
查看完整题目与答案
【简答题】煤的挥发份测定实验中,称取一定量的____干燥煤样,放在带盖的 中,在____温度下,隔绝空气加热____。以____占煤样的质量分数,减去该煤样的____作为挥发份产率。
查看完整题目与答案
【判断题】Brain interventions call attention to something hard to fathom & often overlooked: what we like, what we are like, who we are, in some very real sense, are dependent on the motion of matter & ebb & fl...
A.
正确
B.
错误
查看完整题目与答案
【判断题】After all, if we are merely material beings whose personality can be altered & even controlled by fairly simple technologies such as deep brain stimulation, is there really a there? Is there some immu...
A.
正确
B.
错误
查看完整题目与答案