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【单选题】
以下对哌替啶描述错误的是A.
，变质
B.
又名度
C.
口服生物利用度约为50％，需注射给药
D.
分子中有酯键，易被水解失效
E.
体内代谢生成的去甲哌替啶，惊厥作用大2倍，产生毒性
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举一反三
【判断题】The word Christmas originated from an old English phrase, 'Cristes Masse', meaning the mass of Christ(基督弥撒).()
A.
正确
B.
错误
【判断题】According to the video, In the transition from old English to middle English, English went from being a synthetic language to a highly analytic language, with many inflections lost and word orders mor...
A.
正确
B.
错误
【单选题】In Old English the word girl can refer to a young person of either sex. Today it is restricted to 'a young woman'. This is an instance of ______.
A.
meaning shift
B.
narrowing
C.
broadening
D.
class shift
【判断题】The word order of Modern English is more variable than that of Old English.
A.
正确
B.
错误
【简答题】设随机变量X与Y独立，且 ，Y服从参数为5的指数分布，求P{Y≤ X}．
【简答题】空间里有一点 A ,投影到 正投影 面用字母 表示 ; 水平投影面 用字母 表示; 侧投影面 用字母 表示。
【单选题】The word which in the passage refers to
A.
tale
B.
Scandinavia
C.
manuscripts
D.
Old English
【简答题】The following excerpt from Beowulf uses _________, a literary device typical in the Old English poetry. “The leader of the troop unlocked his word-hoard; the distinguished one delivered this answer......
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