no sign =not a sign
问题描述：
no sign =not a sign
there was ( )of forced entry.
A no sign B not sign
选哪个?
答
A
如果是B,至少也是not a sign.
no sign和not a sign的区别是no sign是虚指,一般是说不存在什么征兆,not a sign是实指,一般是说什么不是征兆.这里应该的意思比较接近no sign,选A.