一般实验方法的回收率应该是()。
A.100%±1%
B.100%±2%
C.100%±3%
D.100%±4%
E.100%±5%
参考答案:E
急性心肌梗死溶栓治疗的禁忌证是()
A.两个或两个以上相邻导联ST段抬高(胸前导联≥0.2mV,肢导联≥0.1mV)
B.血压≥180/110mmHg
C.发病6小时以上
D.年龄>70岁
E.2周前行股动脉穿刺
-- What do you think of Saudi Arabia Pavilion(展馆)?
-- It’s so wonderful! I believe it’s ______ than China Pavilion, the largest one.
A.no better
B.no worse
C.not better
D.not worse