MCS-51的5个中断源优先级相同。()
参考答案:错
Kate didn't go to the movies last night because she had to _____her sick(生病的)dog at home . [ ]
A. look at
B. look up
C. look for
D. look after
当今城市地域的类型中,( )城镇化发展到较高阶段时产生的城市空间组织形式。
A.全球城市区域 B.大都市区C.全球城市地带 D.大都市带