对未曾使用过的厂家产品由电能专责负责进行(),同时电能专责对在用产品运行业绩提供()。
参考答案:型式试验;评估意见
—Why didn't you arrive there until three days later?
—Because the heavy rain _____ the difficulties of the journey. [ ]
A. added
B. added to
C. was added
D. was added to
溃疡病急性穿孔后最严重的后果是()
A.引起急性弥漫性腹膜炎
B.引起胃和十二指肠周围脓肿形成
C.引起肠粘连
D.引起小网膜急性炎症
E.引起慢性包裹性腹膜炎