题干
— Where did you find your lost pen?
—It was in the park _____ we visited that day _____ I found it.
—It was in the park _____ we visited that day _____ I found it.
A：what; that
B：which; that
C：where; that
D：when; that
答案(点此获取答案解析）
B
m，利用地球同步卫星与地球表面的距离为3.6×
m这一事实可得到哈勃天文望远镜绕地球运行的周期．以下数据中最接近其运行周期的是 ( )
