简单低共熔混合物中药物以何种状态存在
A.分子
B.胶态
C.微晶
D.无定形
E.晶体
参考答案:C
Even Tony’s granddaughter,a five-year-old girl,asked him__________ smoking.
A.give up
B.gave up
C.to give up
D.giving up
农业生产的季节性特点要求我们在从事农业生产时要因地制宜,按自然规律办事。