Water attains the boiling temperature quicker in the high elevations than at the low level. Because:
A: . the air pressure is lower at high elevations
B: . the gravitational force is low in the mountains
C: . the sunlight is high in the higher elevations
D: . All of them
A: . the air pressure is lower at high elevations
B: . the gravitational force is low in the mountains
C: . the sunlight is high in the higher elevations
D: . All of them
举一反三
- Air tends to flow from a _______ pressure area to a _______ pressure. A: high, lower B: low, higher C: high, high D: low, low
- The aphotic zone (bottom of the ocean) will have ____ and ____ while the photic zone (surface of the ocean) will have ____ and ____. A: low temperature, low salinity; high temperature, high salinity B: low temperature, high salinity; high temperature, low salinity C: high temperature, high salinity; low temperature, low salinity D: high temperature, low salinity; low temperature, high salinity E: both have equal temperature and salinity
- The high level and low level specified by LVTTL are ________. A: high level 5.0V low level 0V B: high level 3.3V low level 0V C: high level 2.4V~5.0V low level 0V~0.5V D: high level 2.4V~3.3V low level 0V~0.4V
- Mean high water is the average height of（）. A: The higher high waters B: The lower high waters C: The lower of the two daily tides D: All high water
- ENUM类型的字段level定义为（LOW、MIDDLE、HIGH），ORDER BY level asc的顺序是 A: HIGH、LOW、MIDDLE B: LOW、MIDDLE、HIGH C: MIDDLE、LOW、HIGH D: HIGH、MIDDLE、LOW