最常见的输血反应是()。
A.发热
B.荨麻疹
C.过敏性反应
D.溶血反应
E.肺浸润
参考答案:A
JWJXC-H125/0.44型继电器的工作值不大于()。
A.12V
B.13V
C.13.3V
D.14.4V
I don't think he tried his best to learn English, ______? [ ]
A. did he
B. do I
C. didn't he
D. don't I