A point in space is approximately 1/8 of an inch across.
举一反三
- The discount rate will vary ( ) A: across cultures at a point in time B: across cultures over time C: within a culture at a point in time . D: within a culture over time.
- The space station is made of parts that were assembled in space by astronauts and ________ Earth at an average altitude of approximately 250 miles. A: programs B: spins C: travels D: orbits
- printlen(ltrim(space(8)+space(8)))的返回值是（）。
- The venturi tube can be used to measure ( ) A: Point velocity B: Point pressure C: Average velocity across section D: Flow rate
- 函数Len(Rtrim(Space(8)+Space(8)))返回的值是（）。