A:NO3﹣、Fe3+、Na+、SO42﹣
B:Cl﹣、K+、OH﹣、Ba2+
C:K+、SO42﹣、Na+、NO3﹣
D:Ca2+、Cl﹣、CO32﹣、Na+
—I was born _______ May 10th.
—I want to make a toy car.
已知实数x和﹣1.41分别与数轴上的A、B两点对应.