对二重积分<img src="https://zk.995w.com/lqwvjeImg/b0/b01c8da931451f36a56fefa1fa21fc52.png" style="width:122px;height:49px;">计算过程中,必须对积分区域<img src="https://zk.995w.com/lqwvjeImg/c6/c600d020b750857f34b4951f7031c865.png" style="width:17px;height:17px;">进行分块的情况有( )<br>· 函数<img src="https://zk.995w.com/lqwvjeImg/1b/1b3b95949daac22fd01856d238617150.png"style="width:51px;height:21px;">在区域<img src="https://zk.995w.com/lqwvjeImg/c6/c600d020b750857f34b4951f7031c865.png"style="width:17px;height:17px;">上是分片函数<br>· 积分区域<img src="https://zk.995w.com/lqwvjeImg/c6/c600d020b750857f34b4951f7031c865.png"style="width:17px;height:17px;">既非<img src="https://zk.995w.com/lqwvjeImg/11/11935b4b1b3fd0f3c2f529653ba80bcc.png"style="width:13px;height:15px;">型又非<img src="https://zk.995w.com/lqwvjeImg/d2/d28f635065b1c7ae5a36e09c981596b5.png"style="width:15px;height:17px;">型<br>· 积分区域<img src="https://zk.995w.com/lqwvjeImg/c6/c600d020b750857f34b4951f7031c865.png"style="width:17px;height:17px;">的边界线中有分段函数<br>· 积分区域<img src="https://zk.995w.com/lqwvjeImg/c6/c600d020b750857f34b4951f7031c865.png"style="width:17px;height:17px;">的边界线全部为曲线