如图各选项中描述细胞分化过程的是哪一项（ ） A．A B．B C．C D．D
题型：选择题
问题：
如图各选项中描述细胞分化过程的是哪一项（ ）
A．A
B．B
C．C
D．D
题型：选择题
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 (头衔) of world champion.
More than 500 players, including national 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 (拳头~) closed and count to three before making one of three hand signals: a fist 0ock),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 believed to have been played for centuries in Japan
The Paper Scissors Stone Club was found in England in 1842 and provided an environment where players could play together.
In 1918, the name was changed to World RPS Club and its headquarters (总部)moved from London to Toronto. In 1925 its members were over 10,000.
The world championships have been held since 2O02, which are held once every year
小题1:The winner could get______
A．$1,000
B．$10,000
C．C$1,00O
D．C$10,000小题2:According to the passage the game “Paper Scissors Stone" originated(起源于)in ________
A. Japan B Australia : C. America D. Norway
小题3:Where did the Paper Stone Club’s headquarters move to Toronto?
A In 1842 B In 1898 C In 1918 D In 1925
小题4: How many world championships had been held by 2009?
A．Two.
B．Eight
C．Seventy.
D．Eighty