Chinese characters are usually round outside and square inside, which is rooted in ancient Chinese belief that the earth was_____ and the heaven was_____ . A: spherical, square B: square, spherical C: endless, huge D: huge, endless
Chinese characters are usually round outside and square inside, which is rooted in ancient Chinese belief that the earth was_____ and the heaven was_____ . A: spherical, square B: square, spherical C: endless, huge D: huge, endless
An atom is not a solid spherical particle(刚性球形粒子), as it was once thought to be.
An atom is not a solid spherical particle(刚性球形粒子), as it was once thought to be.
Green lights may appear on（）. A: horizontally banded buoys B: vertically striped buoys C: yellow buoys D: spherical buoy
Green lights may appear on（）. A: horizontally banded buoys B: vertically striped buoys C: yellow buoys D: spherical buoy
The neucleus of smooth muscle cells becomes( )when the muscle contracts.() A: enlarged B: flattened C: more spherical D: twisted E: elongated
The neucleus of smooth muscle cells becomes( )when the muscle contracts.() A: enlarged B: flattened C: more spherical D: twisted E: elongated
Spherical polar coordinates are used to solve the Schrödinger equation for a hydrogen atom because A: the Laplacian operator has its simplest form in spherical polar coordinates. B: Cartesian coordinates would give particle-in-a-box wavefunctions. C: the Schrödinger equation is then separable into 3 ordinary differential equations. D: otherwise the atomic orbitals would violate the Pauli exclusion principle.
Spherical polar coordinates are used to solve the Schrödinger equation for a hydrogen atom because A: the Laplacian operator has its simplest form in spherical polar coordinates. B: Cartesian coordinates would give particle-in-a-box wavefunctions. C: the Schrödinger equation is then separable into 3 ordinary differential equations. D: otherwise the atomic orbitals would violate the Pauli exclusion principle.
A lysosome is a membrane-bound organelle found in nearly all animal cells. They are spherical vesicles which contain hydrolytic enzymes that can break down many kinds of biomolecules.
A lysosome is a membrane-bound organelle found in nearly all animal cells. They are spherical vesicles which contain hydrolytic enzymes that can break down many kinds of biomolecules.
A 56-year-old man has a large amount of ascites. What kind of abdomen contour is it for him? A: Abdomen is frog-like with umbilicus depressed. B: Abdomen is frog-like with umbilicus exerted. C: Pointed abdomen D: Spherical abdomen E: Scaphoid abdomen
A 56-year-old man has a large amount of ascites. What kind of abdomen contour is it for him? A: Abdomen is frog-like with umbilicus depressed. B: Abdomen is frog-like with umbilicus exerted. C: Pointed abdomen D: Spherical abdomen E: Scaphoid abdomen
要得到图中有一条黄色短线指示贴图顶部的效果，请问我们不可能使用了下列哪项贴图类型？（） A: ［柱形（Cylindrical）］ B: ［球形（Spherical）］ C: ［收缩包裹（ShrinkWrap）］ D: ［长方体（Box）］
要得到图中有一条黄色短线指示贴图顶部的效果，请问我们不可能使用了下列哪项贴图类型？（） A: ［柱形（Cylindrical）］ B: ［球形（Spherical）］ C: ［收缩包裹（ShrinkWrap）］ D: ［长方体（Box）］
The electric potential inside a charged solid spherical conductor in equilibrium A: is always zero. B: is constant and equal to its value at the surface. C: decreases from its value at the surface to a value of zero at the center. D: increases from its value at the surface to a value at the center that is a multiple of the potential at the surface
The electric potential inside a charged solid spherical conductor in equilibrium A: is always zero. B: is constant and equal to its value at the surface. C: decreases from its value at the surface to a value of zero at the center. D: increases from its value at the surface to a value at the center that is a multiple of the potential at the surface
The value of the Aerodynamic Particle Diameter of a 1µm diameter spherical particle with density 4g/cm3 is_______。Assume that the Cunningham correction factor can be neglected。 A: 4 µm(g/cm3)0.5 B: 1.0μa C: 2.0μa D: 4μa E: 2.0µm(g/cm3)0.5
The value of the Aerodynamic Particle Diameter of a 1µm diameter spherical particle with density 4g/cm3 is_______。Assume that the Cunningham correction factor can be neglected。 A: 4 µm(g/cm3)0.5 B: 1.0μa C: 2.0μa D: 4μa E: 2.0µm(g/cm3)0.5