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【单选题】
(2018·青岛期末)常温下,下列各组微粒在指定溶液中能够大量共存的是( )
A.
中性溶液中:Ag + 、NO 3 - 、K + 、Cl -
B.
稀硫酸中:CH 3 CH 2 OH、Na + 、MnO 4 -
C.
c(Fe 2+ )=1 mol·L -1 的溶液中:Na + 、N 、ClO - 、SO 4 2 -
D.
c(OH - )=1.0×10 -13 mol·L -1 的溶液中:Mg 2+ 、Cu 2+ 、SO 4 2 - 、K +
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【单选题】设 r=10,下列选项中,计算结果为 314 的表达式是( )。
A.
Math.PI.toFixed(2) * r * r
B.
Math.ceil(Math.PI) * r * r
C.
Math.floor(Math.PI) * r * r
D.
Math.round(Math.PI) * r * r
查看完整题目与答案
【单选题】In the marriage union, the independence of the husband and wife will be equal, their dependence mutual, and their ______ reciprocal.
A.
payment
B.
obligation
C.
option
D.
penalty
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【单选题】社会意识的本质特点在于
A.
它是社会存在的反映，具有相对对立性
B.
它是全社会人的共同意识
C.
它具有鲜明的阶级性
D.
它是独立于社会存在之的精神实体
查看完整题目与答案
【单选题】Our preferences for certain colors are ______.
A.
associated with the time of the day
B.
depended on our character
C.
linked with our primitive ancestors
D.
partly due to psychological factors
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【单选题】The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms. This interdependence is sometimes subtle, sometimes obvious. Perhaps t...
A.
How parasites reproduce.
B.
How organisms react to invaders.
C.
How antibiotics work to cure disease.
D.
How the immune system of vertebrates developed.
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【多选题】下列选项中,计算结果为3的表达式是(__)。
A.
Math.round(Math.PI)
B.
Math.floor(Math.PI)
C.
Math.ceil(Math.PI)
D.
Math.PI.toFixed(0)
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【单选题】下列影像学方法哪个对人体损伤最小Which of the following medical imaging methods is the least harmful to humans?
A.
普通 x 线摄影 Radiography
B.
CT
C.
DSA
D.
核医学
E.
MRI
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【简答题】Magnetic resonance imaging (MRI) of the head uses a powerful 1) _________________, 2) _________________and a computer to produce detailed pictures of the brain and other cranial structures that are cl...
查看完整题目与答案
【单选题】下列选项中可以保留2位小数的是( )。
A.
Math.PI.toFixed(2)
B.
Math.ceil(Math.PI)
C.
Math.floor(Math.PI)
D.
Math.round(Math.PI)
查看完整题目与答案
【简答题】社会意识的本质特点在于A. 社会意识是对社会存在的反映,具有相对独立性
查看完整题目与答案
相关题目：
【单选题】设 r=10,下列选项中,计算结果为 314 的表达式是( )。
A.
Math.PI.toFixed(2) * r * r
B.
Math.ceil(Math.PI) * r * r
C.
Math.floor(Math.PI) * r * r
D.
Math.round(Math.PI) * r * r
查看完整题目与答案
【单选题】In the marriage union, the independence of the husband and wife will be equal, their dependence mutual, and their ______ reciprocal.
A.
payment
B.
obligation
C.
option
D.
penalty
查看完整题目与答案
【单选题】社会意识的本质特点在于
A.
它是社会存在的反映，具有相对对立性
B.
它是全社会人的共同意识
C.
它具有鲜明的阶级性
D.
它是独立于社会存在之的精神实体
查看完整题目与答案
【单选题】Our preferences for certain colors are ______.
A.
associated with the time of the day
B.
depended on our character
C.
linked with our primitive ancestors
D.
partly due to psychological factors
查看完整题目与答案
【单选题】The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms. This interdependence is sometimes subtle, sometimes obvious. Perhaps t...
A.
How parasites reproduce.
B.
How organisms react to invaders.
C.
How antibiotics work to cure disease.
D.
How the immune system of vertebrates developed.
查看完整题目与答案
【多选题】下列选项中,计算结果为3的表达式是(__)。
A.
Math.round(Math.PI)
B.
Math.floor(Math.PI)
C.
Math.ceil(Math.PI)
D.
Math.PI.toFixed(0)
查看完整题目与答案
【单选题】下列影像学方法哪个对人体损伤最小Which of the following medical imaging methods is the least harmful to humans?
A.
普通 x 线摄影 Radiography
B.
CT
C.
DSA
D.
核医学
E.
MRI
查看完整题目与答案
【简答题】Magnetic resonance imaging (MRI) of the head uses a powerful 1) _________________, 2) _________________and a computer to produce detailed pictures of the brain and other cranial structures that are cl...
查看完整题目与答案
【单选题】下列选项中可以保留2位小数的是( )。
A.
Math.PI.toFixed(2)
B.
Math.ceil(Math.PI)
C.
Math.floor(Math.PI)
D.
Math.round(Math.PI)
查看完整题目与答案
【简答题】社会意识的本质特点在于A. 社会意识是对社会存在的反映,具有相对独立性
查看完整题目与答案