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【判断题】
减速机注射的润滑油是减速机配套专用润滑油,可与其他品牌的润滑油混合使用。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】How long does it take him to walk to the bookshop?
A.
Twenty minutes
B.
Half an hour.
C.
Ten minutes
D.
Forty minutes.
【单选题】-- does it take him to get to school? --About fifteen minutes.
A.
How often
B.
How long
C.
How much
D.
How far
【简答题】If Allen drives at an average speed of 60 kilometers per hour. How long does it take him to visit his parents to and fro every month?
【单选题】【图片】如图所示，VD1、VD2均为理想二极管，下列哪个说法是正确的？
A.
两个二极管VD1、VD2均导通。
B.
二极管VD1优先导通。
C.
输出直流电压Uo为6V。
D.
输出直流电压Uo为-3V。
【简答题】How long does it take him to __________ to the shopping mall? (mind drive survey issue)
【单选题】——______ did it take him to draw the horse? ——Half a week.
A.
How much
B.
How often
C.
How long
【单选题】— ______does it take him to come to work by train? — An hour. [ ]
A.
How often
B.
How long
C.
How far
【单选题】_____ does it take him to walk to the park every day? [ ]
A.
How far
B.
How often
C.
How long
D.
How much
相关题目：
【单选题】——______ did it take him to draw the horse? ——Half a week.
A.
How much
B.
How often
C.
How long