皮皮学，免费搜题
登录
搜题
【判断题】
衡量电能质量的指标是频率、电压、波形。()A.
正确
B.
错误
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】Everyone knows that ______ paper was invented by _______ Chinese.
A.
/; the
B.
the; a
C.
a; /
D.
a; a
【简答题】句型转换。 1. He knows a little about Chinese. (对划线部分提问) _____ _____ does he know about Chinese? 2. Jack's mother gives him ten dollars every day. (对划线部分提问) _____ _____ _____ Jack's mother give him every d...
【单选题】What does "be beside oneself with joy"mean?
A.
be extremely sad
B.
be extremely excited or happy
C.
be extremely disappointed
D.
be extremely depressed
相关题目：