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【单选题】
No matter who you are or where you come from, one thing is certain: you are acquainted with the mosquito(蚊子)—although you probably wish you weren t. Mosquitoes are everywhere. They can be found all over the world, and they come in more than 2500 species. Somewhere, at some time, you have surely met at least one. No one loves the mosquito. But unfortunately the mosquito may decide that she loves you. Yes, she. Only the female mosquito bites. It s not because she s unfriendly: she needs blood to reproduce. Female mosquito is quite selective, and she chooses her victims carefully. First, she uses sensors to find her victim. With these sensors, she tests your body moisture, body warmth, and chemical substances in your sweat. If she likes what she finds, she bites. But if you dont appeal to her, she 11 reject you for someone more appetizing. The next time a mosquito bites you, just remember that you were chosen. Youre special. If the mosquito likes you, she settles onto your flesh very gently, and she breaks your skin with her proboscis tip. It s a kind of mouth and it sticks out just below the mosquito s eyes. She stabs the proboscis tip into your skin at once, and if she hits a blood vessel, she 11 get a full dinner in about a minute. After that, the mosquito is tired. Heavy with your blood, she picks a spot—on a leave or a stone—to lay her eggs. Just one drop of blood will produce hundreds of eggs. By the sentence 'you are acquainted with the mosquito—although you probably wish you weren t' , the author means that people______.
A.
don' t like mosquito but it is always there
B.
know mosquito and wish them well
C.
wish all the mosquito disappeared
D.
want to be friendly to mosquito but fail at last
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A.
城市与农村相结合
B.
脑力劳动与体力劳动相结合
C.
教育与生产劳动相结合
D.
知识分子与工人农民相结合
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A.
加快输电的速度
B.
降低输电的技术要求
C.
方便调节交流电的频率
D.
减小输电线上的能量损失
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A.
not drinking
B.
not drink
C.
don’t drink
D.
not to drink
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A.
严格执行查对制度
B.
做好血液质量检查
C.
输血前肌注异丙嗪
D.
血液中勿随意加入药物
E.
血液不能加温、震荡
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A.
严重破坏
B.
轻度磨损
C.
严重磨损
D.
以上都不对
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A.
正确
B.
错误
【多选题】有效地预防溶血反应发生的措施包括()
A.
做好血型鉴定和交叉配血试验
B.
采集血标本及输血前执行查对制度
C.
严格遵守输血操作规程
D.
不使用变质血液
E.
密切观察患者病情
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A.
严格执行查对制度
B.
做好血液质量检查
C.
输血前肌注异丙嗪
D.
血液中勿随意加入药物
E.
血液不能加温震荡
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