皮皮学，免费搜题
登录
搜题
【多选题】
有源逆变电路中选取最小逆变角βmin需要考虑以下哪些因素?A.
晶闸管的时间
B.
换相重叠角
C.
晶闸管的触发延迟角
D.
安全裕量角
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 beg your pardon, but I didn’t quite catch you. --- Oh, I ______ myself.
A.
am talking to
B.
talked about
C.
have talked to
D.
was talking to
【单选题】----- I beg your pardon, but I didn’t quite catch you . ---- I _____ myself .
A.
am talking to
B.
talked about
C.
have talked
D.
was talking to
【单选题】蜗杆箱孔的中心距检查是先将两个测量芯棒插入孔中，箱体用三个千斤顶支撑在平板上，调整千斤顶，使其中一个与平板平行，然后分别测量( )即可算出中心距。
A.
箱孔直经
B.
同轴度
C.
圆柱度
D.
两芯棒与平板距离
【单选题】Th e logi c behin d th e catch-u p effec t i s that
A.
worker s i n countrie s wit h lo w income s wil l wor k mor e hour s tha n worker s i n countrie s wit h hig h incomes.
B.
th e capita l stoc k i n ric h countrie s deteriorate s a t a highe r rat e becaus e i t alread y ha s a lo t o f capital.
C.
ne w capita l add s mor e t o productio n i n a countr y tha t doesn' t hav e muc h capita l tha n i n a countr y that alread y ha s muc h capital.
D.
Non e o f th e abov e i s correct.
【简答题】简述《长生殿》的艺术特色。
【单选题】—Beg your pardon, but I didn’t quite catch what you said. —Oh, I to myself.
A.
have talked
B.
am talking
C.
had talked
D.
was talking
【简答题】简述《长生殿》的艺术特色。
相关题目：