电冰箱的门封条变形了可用下列哪种方法整形为宜？（）
A、用力拉直
B、用火烤
C、用电吹风吹
参考答案：C
_____ the youth _____ the rising sun at 8 or 9 o'clock a.m., Mao Zedong expressed his great hope for the young men.[ ]
A. Comparing; with
B. Compared; to
C. Compared; with
D. Comparing; to
膀胱内血块和膀胱肿瘤的最佳鉴别方法是
A．变换体位后团块可否移动
B．用彩色和频谱多普勒检测有无血流
C．区别二者内部回声的特点
D．A+B
E．A+C
