The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the().
Since heat will not flow freely from a body at a () temperature to another at a () temperature, it is necessary to expend mechanical work, heat, or electrical energy from an external source to achieve refrigeration.
Solid green arrows on the main body of a pilot chart indicate ().
What may help you feel better about your body?
〈body topmargin=?〉,描述不正确的是()。
The piston supporting body is mainly subjected to () stress.
The law-making or the legislative body in the government is ()
A celestial body will cross the prime vertical circle when the latitude is numerically ().
An azimuth angle for a body is measured from the().
What is a convenient and effective system of examining the body of an injury victim?()