男,11岁,右侧阴囊空虚,左侧睾丸可触及,右侧腹股沟区可探及低回声肿块,如图所示,考虑为()
A.隐睾
B.淋巴结
C.腹股沟疝
D.腹股沟肿瘤
E.以上都不是
参考答案:A
If we go on using energy so wastefully, ______ are that our oil wells will be dried up ______ new
energy sources can be found to replace oil.[ ]
A. chances; before
B. difficulties; after
C. questions; since
D. problems; as
计算机重新启动的方法有两种:冷启动和热启动。