秦朝时,统治者提出过“以吏为师”,到汉代,却提出了“以师为吏”。这一变化反映了( )
A:国家治理理念的更新
B:加强了对知识分子阶层的管控
C:黄老之术已不能适应时代发展的需要
D:百家争呜局面的最终结束
现存世界上最早的雕版印刷品是( )
小华同学对于身边物理量的大小进行了估测,下列估测中接近实际的是( )
Football
People call it “the first sport in the world”. There are two teams in the football field during a game. Each team has eleven players.
Tennis
There is a big net in the middle of the court(球场). Each player has a racket(球拍)in his hand. Two or four players can play it together.
Golf(高尔夫球)
Golf comes from Scotland. It means green, oxygen, light and foot. People play it on the outdoor grass. They hit the white balls into the small holes with a stick.
Basketball
America is the hometown of basketball. This sport is famous for NBA.
There are two teams with ten players on the basketball court. They can't run with the ball in their hands.
下列动物中,具有两翼、趾端有爪、体腔中有膈、捕食昆虫等特点的动物是( )