鼻畸形的手术时间最好在（）
A.3岁以后
B.5岁以后
C.7岁以后
D.9岁以后
E.13岁以后
参考答案：E
You need to take notes at the meeting so make sure _________ a pen and some paper with you.
A．bring
B． to bring
C．bringing
D．not bring
什么叫船体密性试验？密性试验的方法是？
