What is the name of the solid surface in the figure below?[img=360x664]1803bb9e6fc6d99.jpg[/img]
A: circular cone surface
B: Cone-shaped surface
C: Cylindrical surface
D: Columnar surface
A: circular cone surface
B: Cone-shaped surface
C: Cylindrical surface
D: Columnar surface
举一反三
- Where is the measuring position of the uneven gauge in our country？ A: 10mm below the rail top surface B: 12mm below the rail top surface C: 14mm below the rail top surface D: 16mm below the rail top surface
- The effective volume of aggregate is () A: Volume of solid aggregate B: volume of solid aggregate and surface voids C: volume of solid aggregate and surface voids not filled with asphalt D: volume of solid aggregate, surface voids and closed voids
- ______ is covered with heavy snow. A: The surface of earth B: The earth’s surface C: The earths’ surface D: The surface
- _____ is covered with heavy snow. A: The earth’s surface B: The surface of earth C: The surface earth D: The earth surface
- If there is no charge inside the Gaussian surface, the field [img=14x24]180356c02c2f797.png[/img] on the surface must be zero everywhere.