亚洲与北美洲的分界线是[ ]
A．乌拉尔河
B．苏伊士运河
C．白令海峡
D．乌拉尔山
答案：C
The employees were made to spend as much time as they could ______ more products to meet the _______ market.
A．producing; growing
B．to produce; grown
C．to produce; growing
D．produced; grown
8086系统的RAM存储单元中，从0000H：002CH开始依次存放23H、0FFH、00H和0F0H4个字节的中断向量，该向量对应的中断类型码是多少？而中断类型码为14H的中断向量应存放在哪些存储单元中？
