种子成熟标准
参考答案:
种子成熟之配发与完全喝后熟充足的具有良好发芽能力的种子。
In order to help the police, the eyewitness described what he had seen very carefully not to______ any key clues.
A.cut off
B.leave off
C.squeeze out
D.leave out
社区护理工作范围不包括()