电流型逆变电路交流侧输出电流波形为（）。
A.锯齿波
B.正弦波
C.矩形波
D.三角波
参考答案：C
单姓“邝”的正确拼音是______。(五级、四级)
The senator agreed that his support of the measure would jeopardize his chances for reelection.
A. benefit B. endanger C. hinder D. disturb
