生产任务单的计划生产数量必须是正整数（）
参考答案：错
A．(A) She is creative and practical.
B．(B) She is diligent and efficient.
C．(C) She is professional and competitive.
D．(D) She is determined and experienced.
桂龙咳喘宁胶囊的功能是（）
A.清肺润燥，止咳化痰
B.降气平喘，止咳化痰
C.祛风解热，止咳化痰
D.宣肺化痰，止咳平喘
E.解表散寒，宣肺止嗽
