皮皮学，免费搜题
登录
搜题
【单选题】
能够输出多种信号波形的信号发生器是( )。A.
函数信号发生器
B.
正弦波信号发生器
C.
脉冲信号发生器
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—I think l will walk to the party. —Are you sure? If you ____, you will be very tired. [ ]
A.
will
B.
are
C.
do
【单选题】-- Dear me! I _____ you at first sight! But you do have changed a lot! -- Nor _____ I! You are no longer the Fat Girl!
A.
haven’t recognized; have
B.
hadn’t recognized; had
C.
don’t recognize; do
D.
didn’t recognize; did
【单选题】I have some tickets for the basketball match. I wonder ______.
A.
where you buy the tickets
B.
why you like to go there
C.
if you’d like to come along
D.
when you watch the match
【单选题】—_________ —Oh，l feel bad． I think I had a headache ．
A.
Can I help you?
B.
What's wrong with you?
C.
What are you doing?
D.
What's this?
【单选题】Goodbye!_________about you every day until you come back.
A.
I think
B.
I' l1 have thought
C.
I' 11 be thinking
D.
I thought
相关题目：