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【单选题】
简单吲哚类、β-卡波林类、半萜吲哚类、单萜吲哚类和双吲哚类都属于( )。A.
异喹啉生物碱
B.
喹啉生物碱
C.
有机胺类生物碱
D.
吲哚类生物碱
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举一反三
【简答题】I now have a better understanding of Einstein's special theory of relativity after attending ______ lectures on the topic． 听了一系列爱因斯坦相对论的讲座之后，我对这个特殊理论有了更好的理解。
【单选题】I now have a better understanding of Einstein’s special theory of relativity after attending ________ lectures on the topic.
A.
a series of
B.
off balance
C.
at ease
D.
above all
【简答题】I now have a better understanding of Einstein ’ s special theory of relativity after attending lectures on the topic.
【单选题】I now have a better understanding of Einstain's special theory of relativity after attending ______ lectures on the topic.
A.
a series of
B.
the number of
C.
a great deal of
【简答题】Fill in each of the blanks in the following sentences with a word or phrase chosen from the following words. Change the forms where necessary. pursue fame a series of approach ambition w...
【单选题】学习《狼》，老师在讲解“少时，一狼径去，其一犬坐于前。”一句中“犬”的意义时，指导学生学习了“犬”字的语法现象，下列加点词用法与其相同的一项是（ ）。
A.
斗折蛇行《小石潭记》
B.
春风又绿江南岸《泊船瓜洲》
C.
无案牍之劳形《陋室铭》
D.
居庙堂之高则忧其民《岳阳楼记》
【单选题】It is ______ in plain terms that no pension can be paid to anyone under the age of sixty unless he is disabled.
A.
laid up
B.
laid down
C.
laid aside
D.
laid out
【简答题】1) I now have a better unerstading of Eistein's special theory of relativity after attending ____ (一系列)lectures on the topic. 2) Many educators are giving up traditional methods of teaching in favor...
【单选题】"It just means I now have a better understanding of what's _____ stake, and how giving up is not an option." (Saflem: Why I keep speaking up even when people mock my accent)
A.
at
B.
on
C.
for
D.
by
【单选题】I now have a better understanding of Einstein's special theory of relativity after attending ____ lectures on the topic .
A.
believe in
B.
a series of
C.
work out
D.
off balance
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