Remove the batteries when they become weak or when the unit is not in use for extended periods. This will damage to the unit from battery leakage at such times.
#75305
A
disappoint
B
concern
C
instruct
D
prevent
推荐题目
The meal over, the managers went back to the meeting room to ______ their discussion.
#82133
A
put away
B
take down
C
look over
D
carry on
—Will you be able to finish the report before Friday? —I can’t ________ anything, but I’ll try my best.
#70316
A
guarantee
B
transform
C
prepare
D
say
Mr. Wang decided to devote all his time_______ his spoken English before going abroad.
#70350
A
improve
B
to improve
C
improving
D
to improving
Please make sure all the lights are ______ before you go to bed.
#72596
A
turned on
B
turned down
C
switched off
D
switched on