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【简答题】
2 和 Wilkins 因发现核酸结构及其对信息传递的重要性获得诺贝尔奖。
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举一反三
【多选题】衍生毒物可分为( )。
A.
非热解毒物
B.
污染物反应产生的毒物
C.
热解有机毒物
D.
油脂氧化物
【单选题】Which of the following is NOT true?
A.
When a person tries to help others, he must be clear that there is a real emergency.
B.
When a person tries to help others, he should know whether hey are worth his help.
C.
A person must take the full responsibility for the safety of those in emergencies if he wants to help.
D.
A person with a heart attack needs the most.
【多选题】可诱发急性白血病的药物包括
A.
氯霉素
B.
保泰松
C.
细胞毒性药物
D.
苯及其衍生物
E.
青霉素
【单选题】Which of the following is NOT true?
A.
When a person tries to help others, he must be clear that there is a real emergency.
B.
When a person tries to help others, he should know whether they are worth his help.
C.
A person must take the full responsibility for the safety of those in emergencies if he wants to help.
D.
A person with a heart attack needs help.
【简答题】“怒目瞪眼”可刺激____经。A. 肝 B.肺 C.脾 D.肾
【判断题】由于熟制方法不同,亦可产生有毒成分,如肉类,鱼类在高温下长时间烤制,可产生色氨酸的氨甲基衍生物,有很强的毒性.
A.
正确
B.
错误
【单选题】( )的婚礼仪式隆重,分别在女方家和男方家各举行一次,并在家庭中盛行“男主外、女主内”风俗。
A.
B.
土家族
C.
满族
D.
回族
【单选题】( )可分为 热解有机毒物、 非热解毒物 、 油脂氧化物以及 污染物反应产生的毒物。
A.
天然物
B.
衍生毒物
C.
污染物
D.
添加剂
【单选题】We try to help a person who has fainted by______.
A.
rubbing his head
B.
returning blood to his brain
C.
tightening his muscles
D.
holding him in an upright (垂直) position
【单选题】在沉淀形成过程中,与待测离子半径相近的杂质离子常与待测离子一起与构晶离子形成( )。
A.
吸留
B.
混晶
C.
包藏
D.
后沉淀
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