克罗恩病出现下列哪种改变时应慎用肾上腺糖皮质激素
A．节段性病变B．非干酪性肉芽肿C．全层性炎症肠道病变D．瘘管形成E．肠外表现
参考答案：D
下列说法中不正确的是[ ]
A．两个直角组成一个平角
B．一个角的余角必是锐角
C．同角的补角相等
D．互余且相等的两个角等于45°
What time does Jane ______ after school? [ ]
A. do her homework
B. does her homework
C. do her homeworks
D. does her homeworks
