题目
读图回答问题。 (1) 在图中用箭头标出木星和哈雷彗星的绕日公转方向; (2) 当哈雷基星运行到图中A,B,C三点的 点时,彗尾最长; (3) 当哈雷彗星绕日公转一周时,地球绕日公转约圈; (4) 按结构特征,木星属于行星,属于该类行星的还有。 答案:略
【1】A
【1】76
【1】巨【2】土星We don't allow ________ in the reading room, who has allowed you ________ here.
[ ]
A.smoking, to smoke
B.to smoke, smoking
C.smoking, smoking
D.to smoke, to smoke