Think rock, paper, scissors is a children’s game? Think again.
Top players from around the world came together in Toronto to compete for a ten thousand Canadian dollar prize and the title of world champion.
More than 500 players, including national champions from Australia, Norway and New Zealand, attended.
The simple game is often used to make decisions and solve some simple problems.
Players hold their fists closed and count to three before making a fist (rock), a flat hand (paper) or two fingers (scissors). Paper covers rock, scissors cut paper and rock breaks scissors.
Players have different ideas about the history of the game, but it is commonly believed to have been played for centuries in Japan.
The Paper Scissors Stone Club opened in England in 1842 and players could play together there.
In 1918, the name was changed to World RPS Club and its headquarters moved from London to Toronto.
The world championship has been held since 2002, which is held once every year.
小题1:The winner of the game can get ___________ Canadian dollars as a prize.
A. 10,000 B. 100,000 C. 1,000,000
小题2:The game has been played in Japan ___________.
A. since people invented it B. for about one thousand years
C. since several hundred years ago
小题3:When did World RPS Club’s headquarters move to Toronto?
A. In 1842 B. In 1898 C. In 1918
小题4:The ___________ world championship will be held in 2012.
A. ninth B. tenth C. eleventh
小题5: In the writer’s opinion, ___________.
A. the game is often used to solve big problems.
B. the game is not just a children’s game
C. the game was first played in Japan
标准状况下，将a L H2和Cl2的混合气体点燃，充分反应后，将混合气体通入含b mol NaOH的热溶液中，气体恰好被完全吸收，NaOH无剩余，测得反应后溶液中含Cl－、ClO－、ClO3－，则原混合气体中H2的物质的量为