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【单选题】
Analyze the following statement, and then choose one of the options that you think is best to use in academic writing:To test whether these two species may possibly coexist in the same biotope, we tried to apply our newly developed method.A.
To test whether these two species coexist in the same biotope, we applied our newly developed method.
B.
To test whether these two species might coexist in the same biotope, we applied our newly developed method.
C.
To test whether these two species could coexist in the same biotope, we applied our newly developed method.
D.
To test whether these two species can possibly coexist in the same biotope, we applied our newly developed method.
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皮皮学刷刷变学霸
举一反三
【单选题】以下根管预备的操作哪个是错误的
A.
使用扩孔锉和扩孔钻，由细到粗，依序号进行
B.
根管口可用球钻、大号扩孔钻或裂钻扩大
C.
对于根管狭窄、钙化或根管内异物可用螯合剂乙二胺四乙酸来处理
D.
凡旋转使用的器械，一般旋转不要超过半圈
E.
A+C+D