数列1,1,2,3,5,8,x,21,34,55中,x等于( )
A:11
B:12
C:13
D:14
圆的周长是28.26米,它的直径是____米,半径是____米。
根据句意及首字母提示完成单词
(1)I was b____ in a small town.
(2) —What’s your teacher like? —She is s____ with us.
(3)The students are all from the same p____ school.
(4)We should be____(友好的)to our friends.
(5)There are three hotels in this____(城镇).
“正月十五那一天,公主答应来西藏。莲花大坝不用怕,百匹骏马迎接您。”这一材料涉及的历史事件发生在( )