【单选题】从1405到1433年的28年当中,郑和先后七次下西洋,是中国历史上以及人类航海史上空前未有的壮举。每次他都率领()多人的庞大船队,足迹远达南海、印度洋等30多个国家和地区。
【单选题】Excuse me, is the shortest way to the airport?
【单选题】A rectangle has an area of 32 square feet and a perimeter of 24 feet. What is the shortest of the side lengths, in feet, of the rectangle?
【单选题】What is a characteristic of a rhumb line ().
A.
It is the shortest distance between two points on the Earth
B.
It plots as a straight line on a Lambert conformal chart
C.
It cuts each meridian at the same angle
D.
The course angle constantly changes to form. the loxodromic curve
【单选题】What is the shortest time between Boston and New York by train?
【单选题】Instructions Consider the following social network: Question 3 What is the maximum shortest path between any two nodes in this network?
【单选题】What is the shortest wavelength present in the Brackett series of spectral lines? ( )
【多选题】面对百年不遇的国际金融危机的严重冲击,党中央、国务院审时度势,科学决策,及时调整了宏观经济政策。带领全国人民万众一心,共克时艰,较快扭转了经济增速明显下滑的局面,实现了国民经济总体回升向好。2009年中国国内生产总值比上年增长8.7%,化“危”为“机”,中国的实力和国际地位空前提高,进一步缩小了与发达国家的差距。这说明( )