單項(xiàng)選擇題

A time diagram is a diagram of the celestial sphere as observed from above the（）.

A.south celestial pole
B.north celestial pole
C.observer's meridian
D.Greenwich meridian

你可能感興趣的試題

A thrust block is designed to（）.

A.transmit the thrust of the engine to the propeller
B.transmit the thrust of the propeller to the vessel
C.absorb the shock of wave pressure at the bow
D.be placed between the engines and the foundation to absorb the vibration

單項(xiàng)選擇題

A thin，whitish，high cloud popularly known as “mares’ tails” is（）.

A.altostratus
B.stratus
C.cumulus
D.cirrus

A time diagram is a diagram of the celestial sphere as observed from above the（）.

你可能感興趣的試題

A thrust block is designed to（）.

A thin，whitish，high cloud popularly known as “mares’ tails” is（）.

A thin，whitish，high cloud popularly known as “mares’ tails” is（）.