皮皮学，免费搜题
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【单选题】
肥大细胞的胞质内充满了（）A.
嗜酸性颗粒
B.
嗜碱性颗粒
C.
异物颗粒
D.
嗜颗粒
E.
嗜铬性颗粒
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】— When did you buy the car? — In November. I ______ it for two months. [ ]
A.
bought
B.
have bought
C.
have had
【单选题】– What a nice bicycle! – Thanks. I ________ it for two months.
A.
have bought
B.
bought
C.
have had
【简答题】流体流动的连续性方程是 ;适用于圆形直管的不可压缩流体流动的连续性方程为 。
【单选题】-----I bought this dictionary two weeks ago. ----You mean you __________ it for half a month.
A.
have kept
B.
have had
C.
have bought
D.
have taken
【简答题】一维流动的连续性方程υA=C成立的必要条件是______。 A理想流体；B黏性流体；C可压缩流体；D不可压缩流体。
【单选题】—When _____ you _____ this book? —I ____ it for two weeks.
A.
have; bought; have had
B.
did; buy; have had
C.
have; bought; bought
D.
did; buy; have bought
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