单项选择题
A.Moon is in its first quarter and third quarter phases B.Sun and Moon are on opposite sides of the Earth C.Moon's declination is maximum and opposite to that of the Sun D.Sun and Moon are in conjunction
Neap tides occur only（）.A.at a new or full MoonB.when t...
单项选择题Neap tides occur only（）.
A.at a new or full Moon B.when the Sun，Moon，and Earth are in line C.at approximately 28-day intervals D.when the Moon is at quadrature
Neap tides occur（）.A.at the start of spring，when the Su...
单项选择题Neap tides occur（）.
A.at the start of spring，when the Sun is nearly over the equator B.only when the Sun and Moon are on the same sides of the Earth and are nearly in line C.when the Sun and Moon are at approximately 90°to each other，as seen from the Earth D.when the Sun，Moon，and Earth are nearly in line，regardless of alignment order
In which month will the equatorial counter current be s...
单项选择题In which month will the equatorial counter current be strongest? （）
A.January B.April C.August D.October
