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【单选题】
关于滴丸剂的概念,下列描述正确的是:A.
系指液体药物与适宜基质加热熔化混匀后,滴入不相混溶的冷凝液中,收缩冷凝而制成的小丸状制剂
B.
系指固体或液体药物与适宜基质加热熔化混匀后,滴入不相混溶的冷凝液中,收缩冷凝而制成的小丸状制剂
C.
系指固体或液体药物与适宜基质加热熔化混匀后,混溶入冷凝液中,收缩冷凝而制成的小丸状制剂
D.
系指固体或液体药物与适宜基质加热熔化混匀后,滴入溶剂中,收缩冷凝而制成的小丸状制剂
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举一反三
【单选题】Modern industry must have developed ______ .
A.
before the Middle Ages
B.
around the 19th century
C.
in Greece or Rome
D.
machines to take tests
【单选题】The Adventures of Huckleberry Finn, _______ the USA in the mid 19th century, _______ a masterpiece.
A.
set in; proves
B.
setting in; is proved
C.
is set in; proves
D.
was set in; is proved
【单选题】The major problems with America's railroad system in the mid 19th century lay in______.
A.
poor quality rails and unreliable stopping systems
B.
lack of financial support for development
C.
limited railroad lines
D.
lack of a transcontinental railroad
【单选题】By the mid-1980s, farmers in Denmark ______.
A.
used 50 per cent less fertiliser than Dutch farmers.
B.
used twice as much fertiliser as they had in 1960.
C.
applied fertiliser much more frequently than in 1960.
D.
more than doubled the amount of pesticide they used in just 3 years.
【简答题】黄曲霉毒素( AFT 或 AT )是由 和 产生的一类代谢产物,具有极强的毒性和致癌性,基本结构中均有一个 和一个 。
【单选题】The major problems with America's railroad system in the mid 19th century lay in ______.
A.
limited railroad lines
B.
lack of a transcontinental railroad
C.
lack of financial support of development
D.
poor quality rails and unreliable stopping systems
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