颈椎病手术的目的是()
A.神经或血管减压
B.纠正序列
C.稳定颈椎
D.改善血供
E.神经或血管减压、稳定颈椎
参考答案:E
— Do you have an e-mail address?
— Yes. It's ________. [ ]
A. 155-6345
B. No.1 Middle School
C. Class One, Grade One
D. hero@sina.com
根据UIC533标准,当外部温度低于()时,空调控制器自动计算的设定温度值保持在22℃。
A.15℃
B.17℃
C.19℃
D.21℃