【单选题】The students showed ____when solving the difficult maths problems.
【判断题】地转偏向力是使运动空气发生偏转的力,它总是与空气运动方向平行。()
【单选题】染色体核型 46 ,XY , del 6q 表示
【单选题】______ at his knowledge, all the students showed their respect to their teacher.
【单选题】染色体核型46, XY, del 6q表示