DOS叫作磁盘()。
A.程序
B.存储器
C.控制器
D.操作系统
参考答案:D
已知复数z1满足(1+i)z1=1+3i,z2=1-ai(a∈R)且|z1-z2|<|z1|
(1)求复数z1;
(2)求实数a的取值范围.
A: Do you like to go hiking with us to the West Mountain this afternoonB: ().
A. OK. Where are you
B. Good idea. It should be beautiful there.
C. All fight. What about you
D. Sorry, I forgot it.