According to gravity models, the number of trips produced in zone i and attracted to zone j depends on
A: Total number of trips produced in zone i
B: Total number of trips attracted to zone j
C: Total number of trips produced in zone j
D: Total number of trips attracted to zone i
A: Total number of trips produced in zone i
B: Total number of trips attracted to zone j
C: Total number of trips produced in zone j
D: Total number of trips attracted to zone i
举一反三
- Which of the following factors will lead to an increase in the number of trips produced in zone i and attracted to zone j? A: Total number of trips produced in zone i B: Total number of trips attracted to zone j C: Impedance to travel between zones i and j D: The friction factor between zones i and j
- An automobile manufacturer increased the total number of cars produced keeping the production cost the same. The manufacturer ________.
- Which zone is a system-defined zone？（） A: null zone B: trust zone C: untrust zone D: management zone
- In zone settling, sludge surface is between _____ . A: clean water zone and isoconcentration zone B: isoconcentration zone and transition zone C: transition zone and compression zone
- 30% to 40% of the total number of new words in English are produced through ______. A: compounding B: affixation C: conversion D: shortening