显示卡主要由显示控制电路、绘图处理器、显示存储器和接口电路四个部分组成。现在接口中性能最好的是()
A.AGP
B.PCI-E
C.IDE
D.ISA
参考答案:B
With a lot of problems _____, the president is very busy every day and hasn't had a good rest. [ ]
A. solving
B. to solve
C. solved
D. having solved
心内膜垫缺损有许多名称,但不能称为()
A.共同房室通道
B.房室间隔缺损
C.房室管畸形
D.原发孔缺损
E.继发孔缺损