A psychrometer has two thermometers that provide dry bulb and wet bulb temperatures. By comparing these two temperature readings with a set of tables you can determine the (). atmospheric pressure。 wind speed。 relative humidity and dew point。 wind chill factor。
海龟眼睛周围有腺体,用于产生(),分泌()
救生艇在抢滩之前,首先应选择好抢滩地点和抢滩时机,否则不可贸然行动。
以下哪类机关有权冻结个人存款()。 人民法院。 监察机关。 审计机关。 公安机关。 海关。 人民检察院。
A predictable result of a vessel nearing a bank or edge of a channel is that the(). stern is drawn to the bank as the bow sheers off。 bow sheers toward the bank。 vessel continues in a straight line,but with greatly reduced maneuverability。 vessel will be drawn bodily into the bank unless the engines are stopped。
被称为现代人类社会赖以生存和发展的第三种资源是()。