下列说法不正确的是[ ]
A. 周长相等的两个等边三角形全等
B. 面积相等的两个等边三角形全等
C. 三角形没有稳定性
D. 有对称轴的三角形都是等腰三角形
答案:C
根据句子意思,用括号中所给词的正确形式填空,每空填一词。
1. No _______(far) discussion is necessary. We have decided it.
2. What an _______(enjoy) music programme on television!
3. I asked her if she was ready to go and she _______(nod).
4. —Do you always encourage _______(you) to make great progress in your study?
—Yes, we do.
5. If the robot is _______(correct) used, it will go wrong.
原发性良性肺肿瘤,下列描述哪项不对()
A.球形肿块,边缘光整,可有浅分叶
B.空洞少见
C.可有斑点状或结节状钙化
D.肺门、纵隔淋巴结正常
E.常有细短毛刺