判断题

卫生填埋对垃圾成分无严格要求,但含水率过高不适宜。
正确
错误

答案：正确

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单项选择题

Which consonant sound is produced with the tip of your tongue in a different position from all the others? Choose one answer.

A．/l/ as in 'luck'
B． /d/ as in 'dog'
C． /n/ as in 'nut'
D． /r/ as in 'run'