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【单选题】
柱塞泵的转轴每转一转,每个密封工作腔吸油、压油各( )次。A.
1
B.
2
C.
3
D.
4
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皮皮学刷刷变学霸
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【简答题】短文改错（共10小题;每小题1分，满分10分） My brother Tom was very selfish when he was a little boy. He did not want share things with other people. For example, when he bought a chocolate cake, he put them in a secret ...
【单选题】下列关于化痰止咳平喘药说法错误的是
A.
化痰药分为温化寒痰和清化热痰药两种
B.
主要包括化痰药和止咳平喘药
C.
化痰、止咳、平喘药常配伍同用
D.
祛痰或消痰，治疗“痰证”为主要作用的药物为化痰药
E.
止咳平喘药无化痰作用
【简答题】阅读理解。 Once Effendi had a joke with the Prime Minister (). He said that the Minister would die the next day. The next day, the Minister fell to the ground from the horse and really died. When the kin...
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