【单选题】My grandma was born on January 23rd, 1922, she's having her ______ birthday soon. [ ]
【多选题】机器的特征:
B.
各部分形成运动单元,各单元之间具有确定的相对运动
【简答题】画出电容、电感线圈、有铁磁的电感线圈的图形符号。
【单选题】立体裁剪中为保证纱向顺直,多以 的方式获取坯布。
【单选题】My grandparents are both in their ____ and they are still living a healthy life. [ A ] ninetieth [B] nineties [ C ] ninety [D] ninety's
【简答题】画出电容C、电感线圈L1、有磁铁的电感线圈L2的图形符号。
【简答题】画出电容、电感线圈、有铁芯的电感线圈的图形符号。
【单选题】July 1,2011 is our Party's _______ birthday. It was founded on July 1, 1921. [ ]