1-18. Areal or imagined line that makes the limits or edges of something and separates it from other things or places; a dividing line
A: biology
B: booth
C: boundary
D: bound
A: biology
B: booth
C: boundary
D: bound
举一反三
- the official line that separates two countries useful to you because it makes something easier to do something that you hope other people will copy list of times that ferries, trains, buses, etc., leave or arrive at a particular place to organize and plan boat that takes people, and sometimes cars, back and forth between two places not simple; with lots of details when a ticket takes you from one place to another and back again where the land meets the sea to understand or enjoy the good qualities of something
- The longest back boundary line is also called________. A: The side line B: The short service line C: The lone service singles. D: The doubles’ line
- In the electrostatic field arising from two parallel planes, a part of boundary line coincides with a streamline. Find the kind of boundary condition of this part of boundary line. A: the first kind of boundary conditions B: the second kind of boundary conditions C: mixed boundary conditions D: We are not sure.
- The Hu Line is a virtual boundary line proposed by Chinese demographer Hu Huanyong in () A: 1935 B: 1940 C: 1945 D: 1950
- which of the following requirements for extension line is correct? A: it should be draw by bold solid line B: about 2 mm from the contour line C: a bout 2 mm beyond the dimension line D: Other lines in the drawing should not be used as the extension line. E: about 2-3mm in length