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【单选题】
有关片剂包衣错误的叙述是A.
纤维素为水分散体薄膜衣材料
B.
用聚乙烯吡咯烷酮包肠溶衣，具有包衣容易、抗胃酸性强的特点
C.
包隔离层是为了形成一道不透水的障碍，防止水分浸入片芯
D.
滚转包衣法适用于包薄膜衣
E.
可以控制药物在胃肠道的释放速度
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【单选题】His ability is beyond question; _____ has been in doubt is ____ he is prepared to work hard A．wh
A.
13. His ability is beyond question; _____ has been in doubt is ____ he is prepared to work hard A．what; that
B.
which; whether
C.
what; whether
D.
that; that
【单选题】－－－ How long has he been in the army?－－－ Oh, he joined the army as far ____ as 1997. A．agoB．away
A.
13. --- How long has he been in the army? --- Oh, he joined the army as far ____ as 1997. A．ago
B.
away
C.
from
D.
Back
【简答题】A．He has stayed on campus. B．He has been in an academic conference. C．He has been ill in hospital. D．He has been on vocation.
【简答题】DBS 的基础是( ),DBS的核心是( )。
【单选题】— Where is your father? — He Australia and he Sydney for two weeks.
A.
has been to；has been in
B.
has gone to；has been in
C.
has been in；has been to
D.
has gone to；has been to
【简答题】DBS的基础是( ),DBS的核心是( )。
【简答题】DBS的核心是__________。
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