A:x=1
B:x=2
C:x=3
D:x=4
某同学在探究“物体所受重力大小与物体质量的关系”的实验记录如下表:
名言积累,请找出有关勤奋的名言。
① ____
② ____
③ ____
④____
⑤____
B: It's over there on your right.