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Passage 1 One thing that really gets up my nose is breathing (吸入) other people’s cigarette smoke against my will. It's about time that smoking in public places in this country was stamped out once and for all. There is nothing worse than coming home from a bar or club after an evening out and finding that your clothes smell disgusting (令人作呕的) because they have been saturated (浸透的) with cigarette smoke. I'm not the only one who is bored with this, and I'm not some born non-smoker, I just wish that I had a choice whether or not I came home smelling like a dirty ashtray (烟灰缸). Another thing that I really hate is walking down the street behind someone smoking a cigarette. Every time they breathe out comes that cloud of stale smoke and you walk straight into it and aside from crossing over to the other side of the street. There is very little you can do about it. It is not a pleasant experience and it is one I could live quite happily without. I know there are a lot of people in this country that smoke and I'll be willing to bet (敢打赌) that some that are reading this article are fed up with people who don't smoke always harping on (唠叨) about their "bad habit" and telling them what to do. The simple fact is that smokers are affecting the health of non-smokers as well as their own. People die each year just because they have breathed other people’s smoke and that is something we really should be taking seriously. In my opinion an outright (立刻的) ban (禁令) on smoking in public places is the only way forward.
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【判断题】B细胞激活后产生浆细胞,浆细胞可以产生免疫球蛋白。
A.
正确
B.
错误
【多选题】利率敏感性资金的定价基础是可供选择的货币市场基准利率,包括( )。
A.
优惠利率
B.
长期国债利率
C.
同业拆借利率
D.
国库券利率
E.
一年期银行定期存款利率
【单选题】将涂膜试样浸泡在氢氧化钙饱和溶液中一定时间,检查涂膜表面是否产生上述破坏现象,此方法是评价涂料的()。
A.
耐酸性
B.
耐腐蚀性
C.
耐碱性
D.
耐候性
【多选题】进退跑练习,下列叙述正确的是?
A.
应顺着一条直线跑动
B.
以快频率的碎步倒退跑
C.
以站立式起跑姿势起跑
D.
进退转换制动时,身体重心应迅速抬高
【多选题】进退跑练习,下列叙述正确的是?
A.
应顺着一条直线跑动
B.
以快频率的碎步倒退跑
C.
进退转换时,应抬高身体重心
D.
以站立式起跑姿势起跑
【单选题】一机车汽笛频率为600 Hz,机车以时速36公里靠近静止的观察者.观察者听到的声音的频率是(设空气中声速为340 m/s)
A.
650Hz
B.
618Hz
C.
648 Hz
D.
702Hz
【单选题】一机车汽笛频率为 750 Hz ,机车以时速 90 公里远离静止的观察者.观察者听到的声音的频率是(设空气中声速为 340 m/s )
A.
695Hz
B.
699Hz
C.
810Hz
D.
593Hz
【单选题】抗原与抗体形成的复合物可激活血清中的 C 蛋白,从而形成 C 蛋白复合物。后者可在被 抗体结合的细胞膜上形成亲水性穿膜孔道,使细胞发生破裂。用绵羊红细胞免疫小鼠后, 小鼠脾脏中产生能分泌特异性抗体的浆细胞。将免疫小鼠的脾脏细胞、绵羊红细胞、C 蛋白混合后,观察绵羊红细胞裂解的相对量,用以评估产生抗体的浆细胞的功能。对此 实验原理及结论的分析,错误的是
A.
绵羊红细胞膜上有刺激小鼠产生抗体的抗原
B.
小鼠体内浆细胞的产生过程中有 T 细胞参与
C.
C 蛋白复合体参与了绵羊红细胞的裂解过程
D.
裂解的绵羊红细胞数量与抗体的数量成反比
【简答题】正确的站立式起跑姿势是什么?
【单选题】一声源,其振动频率为1000Hz。声源静止,而观测者以20m/s的速度向静止的声源运动时,此观测者测到的声波的频率等于多少?空气中声速为340m/s。
A.
1063Hz
B.
1059Hz
C.
1037Hz
D.
1049Hz
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