单选题下列外墙节点做法中，最有利于保温隔热的是（　　）。<br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/21143001_0.png"><br/> <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/21143001_0_1.png">