The king's daughter threatened to drink the_______chemical if he refused her request.A.deadly B.fatalCdeadlyD mortal ABC貌似都有致命的意思的 致命区别呢

The king's daughter threatened to drink the_______chemical if he refused her request.A.deadly B.fatalCdeadlyD mortal ABC貌似都有致命的意思的 致命区别呢
The king's daughter threatened to drink the_______chemical if he refused her
request.
A.deadly
B.fatal
Cdeadly
D mortal
ABC貌似都有致命的意思的 致命区别呢

The king's daughter threatened to drink the_______chemical if he refused her request.A.deadly B.fatalCdeadlyD mortal ABC貌似都有致命的意思的 致命区别呢
1.Fatal是用以描写任何足以致死或确已致死的事物；强烈暗示命运之不可逃避.eg：an illness
which might not be serious for a young person,but whichall almost certainly
prove fatal to the old lady.
2.Deadly在这意义上,可与fatal交换使用.例如：Leukaemiais a
deadly disease（白血球过多症是可以致死的病）.Deadly可指想要致人于死的人或物,而fatal则不能.例如：Themurdered man had many deadly enemies（这被害人有许多死敌）.
3Mortal和deadly相似,可适用于致死、能致死或企图致人于死的人或物.例如：
Because of an ancient family feud,the two cousins had been mortal enemies frombirth（因家庭宿仇,这两个堂兄弟生来就成为死敌）.用于物,mortal与fatal和deadly之不同仅在于mortal通常用以详述业已发生的命案中的细节.例如：He was struckdown by a mortal blow upon the head(他是被头上致命的一击所打到）.
4.C选项应该为Lethal
指本身含有一种质素确可致人于死,或真正为致人于死而存在的东西.例如：Cyanide is a lethal
poison（氰化物是一种致命的毒药）.
除lethal外,这些字都可用以描写激发重大恐惧不安,或引起灾难或破坏,而又不至于导致实际死亡之事物.例如：a fatal
mistake（极严重的错误）;a deadly insult（极难堪的侮辱）;in mortal
terror（吓的要死）.参阅dead,die.

A跟C不是一样的吗？

deadly不是致命的意思，常用于极其、很、非常（渴求）