猜谜语。
( )（1）This day is before Sunday.
( )（2）It can tell you a new word’s meaning.
( )（3）You can see some films there.
( )（4）There is much news on it.
猜谜语。
( )（1）This day is before Sunday.
( )（2）It can tell you a new word’s meaning.
( )（3）You can see some films there.
( )（4）There is much news on it.
内随机地取出两个数
，则
的概率是 ．
、
为两个正数，且
，则
＋
的取值范围是 ．
成等差数列，
成等比数列，且
，则
．
的定义域是 ．
与
互为反函数，则
的单调递减区间是___________．
粤公网安备 44130202000953号