慢性肾炎与慢性肾盂肾炎最主要的鉴别点为().
A.尿培养阳性
B.腰痛
C.尿蛋白
D.低比重尿
E.肾功能减退
参考答案:A
Besides the Internet, television is another major way of communication, ________ us to see the performer as well as to hear the voice.[ ]
A.permitting
B.to permit
C.being permitted
D.permitted
为保证安全,在开展现场检定、校准、检测时,必须注意()
A、了解和遵守现场的安全规定
B、观察相关区域中容易发生危险的可能性
C、依据检定、校准、检测的技术规范进行操作
D、携带必要的防护用品