对一棵排序二叉树进行( )时，可以得到有序序列。
A．前序遍历 B．中序遍历C．后序遍历 D．层次遍历
参考答案：B
Only to use this reading room. Students have another room on the second floor.
A．are the teachers allowed
B．are allowed the teachers
C．the teachers are allowed
D．the teachers allowed
下列各项疾病诊断，哪一种诊断可能性最大
A．慢性胆囊炎急性发作B．胃十二指肠溃疡穿孔C．慢性阑尾炎急性发作D．急性胃肠炎E．卵巢囊肿扭转
