His mother knew he              his time all the time, but she couldn't do anything.[ ]

A. is wasting

B. has wasted

C. was wasting

D. wastes

“稚阴稚阳”应理解为

A．阳常有余、阴常不足

B．易虚易实、易寒易热

C．脏腑娇嫩、形气未充

D．生机蓬勃、发育迅速

E．以上都不对