Powered Speaker 3600 Watt 21′′ Neodymium, 5′′ Voice Coil Subwoofer Subwoofer. US$88.00-216.00 1 Piece (MOQ) Product Details Customization: Available Noise: 0 Activity: PassiveContact Supplier Chat Still deciding? Get samples of US$ 216/Piece Request Sampl...
根据《中国高血压防治指南(2017年版)》,65岁以上老年高血压患者,降压治疗的目标是 ()。[单选题] A. 140/90mHg 以下 B. 140/95mHg 以下