下列哪一项不是产地环境中对农产品质量安全造成危害的主要污染物？（）
A.肥料
B.农药
C.作物秸秆
D.农膜
参考答案：C
29. We stayed in a quiet hotel, ________________.
A．next to it was a thick woods
B．next to which was a thick woods
C．next to it there was a thick woods
D．next to which a thick woods was
患者久病咳嗽，气短乏力，动则气急而喘，自汗淋漓，气不得续，舌淡，脉虚无力。其病机关系最密切的脏是（）
A.心与肾
B.心与肺
C.肺与脾
D.肺与肝
E.肾与肺
