题型:名词解释 COPD急性加重期控制性氧疗应达到的满意的氧合水平是()A.PaO2>45mmHg,SaO2>75%B.PaO2>50mmHg,SaO2>80%C.PaO2>55mmHg,SaO2>85%D.PaO2>60mmHg,SaO2>90%E.PaO2>65mmHg,SaO2>95% 查看答案
题型:名词解释 执行下列程序段,结果是 #include(iostream.h> void main() int x=40;char y=‘C’;int n;n=(x&0xff)&&(y>‘B’);cout<<n;A.0B.1C.2D.3 查看答案
题型:名词解释 It’s quite difficult ______ whether Joe will be fit for the job. [A] see [B] to see [C] seeing [D] to be seen 查看答案