高压断路器具有开断正常负荷电流和故障短路电流的能力。
参考答案:对
男,58岁,上腹部剑突下胀痛3个月余,近期症状加重,伴消瘦、乏力及柏油样便,无黄疸。体检发现左锁骨上两个肿大淋巴结,无压痛,可移动。肝脾肋下未触及。上腹部CT图像如下
根据以上资料,最可能的诊断是()
A.胃恶性间质瘤
B.胃溃疡
C.胃窦癌
D.胃肉瘤
E.胃黑色素瘤
The news that the students would put off the outing until the next week was ________ yesterday.[ ]
A. confirmed
B. impressed
C. observed
D. delivered