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【判断题】
微喷灌系统是可根据作物需水要求，通过低压管道系统与安装在末级管道上的特制灌水器，将作物生长所需的养分以较小的流量均匀、准确地直接输送到作物根部附近的土壤表面或土层中的灌水方法。A.
正确
B.
错误
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【简答题】People are grateful to Carter Dunham for his efforts to____________
【简答题】矿产资源经济学研究的基本内容是什么?
【单选题】To realize his childhood dream is the __________ for his consistent efforts.
A.
impulse
B.
tempo
C.
dart
D.
impetus
【单选题】Virgo was released from prison ______ the successful efforts of his friends to prove his innocence.
A.
according to
B.
as a result of
C.
for reasons of
D.
with the help of
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