统计资料反映了物资需求和消耗现象的特征和规律性,是确定物资需用量的()依据。尤其指(),其需用量往往就是通过对消耗的历史资料作()来确定。
参考答案:间接;维修用料;动态分析
Do you know _________ at this time yesterday?[ ]
A. what she is doing
B. what is she doing
C. what she was doing
D. what was she doing
上颌神经属于()
A.运动神经
B.感觉神经
C.交感神经
D.副交感神经
E.混合性神经