诊断有机磷农药中毒的最重要的指标为
A.确切的接触史
B.毒蕈碱样和烟碱样症状
C.血胆碱酯酶活性降低
D.阿托品试验阳性
E.呕吐物有大蒜味
参考答案:C
Of course, we must work hard.________, we should learn to take good care of ourselves. [ ]
A. Therefore
B. In a word
C. As a result
D. Meanwhile
溶血反应中,SRBC悬液浓度一般为()
A.1%~2%
B.2%~5%
C.5%~6%
D.7%~9%
E.10%