已知：X=-99，则函数IIF（x>0，1，iif（x=0，0，-1）））的返回结果是（）。
A.0
B.1
C.-1
D.-99
参考答案：C
务型阅读（每空1分，共5分）
看图写出病人的病情（用字母写在下列横线上）。
1___________ 2___________ 3___________ 4___________ 5___________
A．The woman has a bad cough. She coughs all day and all night. She should see the doctor.
B．The man has a stomachache. He shouldn’t eat anything.
C．The man has a cold. He should see a doctor and take some medicine.
D．The woman has a headache. She should lie down and have a good rest.E. The man has a sore back. he can’t walk or sit. Maybe he has to go to the hospital.
在获取与处理音频信号的过程中，正确的处理顺序是 （13） 。
A．采样、量化、编码、存储、解码、D/A 变换
B．量化、采样、编码、存储、解码、A/D 变换
C．编码、采样、量化、存储、解码、A/D 变换
D．采样、编码、存储、解码、量化、D/A 变换
