搜题请搜索小程序“爱下问搜题”
问题
选择题
—_____ is my ruler?
—It is on the desk.
A. Where
B. What
C. How
答案
答案:
A
选择题
双曲线
x
2
a
2
-y
2
=1过点P(2
2
,1),则双曲线的焦点是( )
A.(
3
,0),(-
3
,0)
B.(
5
,0),(-
5
,0)
C.(0,
3
),(0,-
3
)
D.(0,
5
),(0,-
5
)
查看答案
填空题
______÷______=
2
5
=
10
()
=
()
10
.
查看答案