下列命题正确的是( ).<br>·若<img src="https://zk.995w.com/lqwvjeImg/a2/a2975bf255d94a745ba6a9308951e0bb.png" >,则级数<img src="https://zk.995w.com/lqwvjeImg/66/66ffa7dbce51680a6d0dc2d1f001bd38.png" 收敛<br>·若<img src="https://zk.995w.com/lqwvjeImg/82/82eb21ce3f1cd7acc82cc676dbe0df7b.png" >,则级数<img src="https://zk.995w.com/lqwvjeImg/66/66ffa7dbce51680a6d0dc2d1f001bd38.png" 发散<br>·若级数<img src="https://zk.995w.com/lqwvjeImg/67/67b9d8c4e0d6b84feafd9b510a5d924b.png" >发散,则<img src="https://zk.995w.com/lqwvjeImg/de/ded7291df067fdd32798da464d5640b8.png" <br>·级数<img src="https://zk.995w.com/lqwvjeImg/67/67b9d8c4e0d6b84feafd9b510a5d924b.png" >发散,则必有<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/165087035194285bef88af842473a99bd8af9ff98c9e0image10.png"