来源 :Journal of China University of Geosciences | 被引量 : [!--cite_num--]次 | 上传用户:[!--user--]
【摘 要】
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Organic carbon isotopes, CaCO 3 content, coupled with carbonate carbon and oxygen isotopes are presented for identifying the climatic instability of Lanzhou fr
Calibration of seismic reflectors appearing in the crust of the Chinese continent sci- entific drilling site can be completed through the correlation studies be
The present study aimed at examining the effectiveness of the teacher’s guidance to collaborative writing in non-English major class.Subjects were 150 Chinese