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【简答题】
接近传感器根据工作原理可分为( )和( )接近传感器。
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反馈参考答案：
举一反三
【判断题】Military tactics was the hidden weapon that Lincoln employed to fight with Confederate Army and finally achieved the reunion of the nation.()
A.
正确
B.
错误
【判断题】The military weapon actually used during the Mongol conquest in the 13th century was the rocket.
A.
正确
B.
错误
【简答题】The military weapon actually used during the Mongol conquest in the 13th century was_______________.
【判断题】The military weapon actually used during the Mongol conquest in the 13 th century was the rocket .
A.
正确
B.
错误
【单选题】I agree to the idea _______ our staff should use recycled papaer to save money.
A.
what
B.
which
C.
that
D.
as
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