药物类型
抗心绞痛药
A．异丙嗪B．氯丙嗪C．双嘧达莫D．泛硫乙胺E．乙酰胺
参考答案：C
Not until_______to work，_______how much time I had wasted.
A．did I begin;did I realize
B．did I begin;I realize
C．I began;did I realize
D．I began;I realize
动力性身体活动能增加肌肉组织和骨密度以及减轻体重。
