对送做确证试验的样品运输,应注意:()
A.用防水.防漏.坚固的容器装样本
B.容器外用吸水纸包裹
C.外套一个塑料袋
D.装入防机械损坏的外包装中
参考答案:A, B, C, D
John had to have his house repaired because it ________ in the earthquake.[ ]
A.damaged
B.was being damaged
C.had damaged
D.had been damaged
某男28岁,突然上腹疼痛4小时,恶心、呕吐、吐出蛔虫一条。既往无溃疡病史。全腹压痛,反跳痛,肌紧张,肝浊音缩小,肝上界下移,肠鸣音消失,血清淀粉酶(4167.5nmol/s)应考虑()
A.胆道蛔虫伴感染
B.阑尾穿孔,全腹膜炎
C.绞窄性肠梗阻
D.溃疡病急性穿孔
E.急性出血性胰腺炎