传染性单核细胞增多症()
A.发热伴肝脾肿大
B.发热伴结膜充血、皮肤黏膜出血
C.先发热后昏迷
D.发热伴寒战、右上腹痛
E.发热伴关节肿痛
参考答案:A
They_________ our luggage at the customs and made a mess of it. [ ]
A. turned out
B. went through
C. looked into
D. took away
简述短路电流值对弧焊电源有何影响。