the machine makes strange______when it is working There must be something wrong with itA songs B sound C water Dpaper

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the machine makes strange______when it is working There must be something wrong with itA songs B sound C water Dpaper

the machine makes strange______when it is working There must be something wrong with itA songs B sound C water Dpaper
the machine makes strange______when it is working There must be something wrong with it
A songs B sound C water Dpaper

the machine makes strange______when it is working There must be something wrong with itA songs B sound C water Dpaper
the machine makes strange______when it is working There must be something wrong with it
选B
这里从下文可以看出机器上应该有一些问题,所以应该是 有一些奇怪的声音
A是歌C是水D是纸课件都不符合所以选B声音

B

B

B
当这个机器工作的时候就会发出奇怪的声音,一定是出问题了。

B sound

B

肯定是B