取样注射器使用前,应顺序用()洗净,充分干燥后方可取样.
A.有机溶剂、自来水、蒸馏水
B.自来水、蒸馏水、有机溶剂
C.蒸馏水、有机溶剂、自来水
参考答案:A
--- What did Lucy ask just now ?
---- She asked _________________________.
A.if there will be a meeting .
B.when the meeting will begin
C.if would there be a meeting
D.when the meeting would begin
男性,30岁,原有风湿性心脏病史,因持续性发热、乏力、纳差来诊。经检查拟诊为亚急性感染性心内膜炎,体格检查时下列哪个体征不可能出现()。
A.环形红斑
B.心率40次/分,心电图示三度房室传导阻滞
C.心脏杂音无变化
D.瘀点
E.脾肿大伴脾区摩擦音