Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.
听力原文:M: We've got three women researchers in our group: Mary, Betty and Helen. Do you know them?
W: Sure. Mary is active and sociable. Betty must be the most talkative woman I've ever met. But guess what, Helen's just the opposite.
Q: What do we learn from the woman's remark about Helen?
(12)
A.Helen is talkative.
B.Helen is active.
C.Helen is sociable.
D.Helen is quiet.
第1题
导致干化学试带法尿液血红蛋白检测时假阳性的情况是
A.大剂量维生素C
B.甲醛
C.大量亚硝酸盐
D.尿路感染
E.清蛋白
第2题
导致干化学试带法尿液血红蛋白检测时假阴性的情况是
A、甲醛
B、氧化剂
C、尿路感染
D、对热不稳定酶
E、大剂量维生素C
第5题
导致干化学试带法尿液血红蛋白检测出现假阳性的情况是
A.大剂量维生素C
B.甲醛
C.大量亚硝酸盐
D.尿路感染
E.清蛋白
第6题
导致干化学试带法尿液血红蛋白检测出现假阳性的情况是
A.大剂量维生素C
B.甲醛
C.大量亚硝酸盐
D.尿路感染
E.清蛋白
第7题
尿液化学试带法检测时维生素C干扰的项目,下列哪项除外
A、尿糖
B、尿胆红素
C、尿蛋白
D、尿亚硝酸盐
E、尿红细胞和血红蛋白
第8题
试带法检测尿液血红蛋白,错误的是
A、维生素C可致假阴性
B、氧化剂污染可致假阳性
C、试带法较湿化学法试剂稳定
D、检测原理基于传统湿化学法
E、灵敏度随尿中血红蛋白浓度增高而增高
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