大西洋（西）的电传洋区码为：（）A.581 B.584 C.872 D.873

H68表示平均含铜量为（）%的普通黄铜。

A.6.8

B.0.68

C.68

D.0.068

初孕妇，30岁。妊娠38周，因胸闷、憋气、不能平卧3日后入院。检查：血压120/80mmHg，脉搏110次／分，呼吸22次／分。心尖部闻及3/6级收缩期杂音。半卧位时颈静脉轻度怒张，双肺底闻及湿啰音。为明确诊断，首先应选择的辅助检查是（）

A.血常规

B.查尿蛋白

C.肝肾功能

D.超声心动检查

E.胸部X线片

A 13-year-old visits the school nurse because he's experiencing back pain, fatigue, and dyspnea. The nurse suspects that the child may have scoliosis. The nurse should first （）.

A．send the child home to recover.

B．inspect the child for uneven shoulder height or uneven hip height.

C．arrange for the child to have spinal X-rays as soon as possible.

D．ask the child's parent to take him to a physician immediately.

正常人潮气量平均约为（）

A.900ml

B.400ml

C.200ml

D.300ml

E.500ml

信息系统评价的常用方法主要有( )。

A．定量方法、定性方法、动态方法、静态方法、成本一效益分析法、专家意见法、多准则评价法等

B．成本一效益分析法、专家意见法、多准则评价法等

C．定量方法、定性方法、动态方法、静态方法等

D．动态方法、静态方法、成本一效益分析法、专家意见法、多准则评价法等