【简答题】Teaching students of threshold level is hard work but the effort is very ________. A) precious B) rewarding C) worth D) challenging
【单选题】对普通蜗杆传动,主要应当计算 内的各几何尺寸。
【单选题】The students in China often get to school _____ bike, but the students in Japan usually _____ the train to school.
【单选题】下列属于全等节拍流水和成倍节拍流水共有的特点是( )。
【简答题】According to the passage, why are students of the same achievement level grouped together?
【单选题】对普通蜗杆传动,主要应当计算 内的各几何尺寸。
【单选题】This special school accepts all disabled students, __ educational level and background.
【简答题】对普通蜗杆传动,主要应当计算主平面内的()。