To everyone's surprise , Alex _____ play chess very much when he was only four .
A:might
B:should
C:can
D:could
体积240立方厘米,质量是1.78kg的铜球,你认为是空心还是实心的?如果是空心的,那么在空心部分注满水、问球的总质量是多少?
刚出生时我是什么样的?