白盒测试法又称为 (1) ,黑盒测试法又称为 (2) 。 2()
A. 结构测试
B. 逻辑测试
C. 功能测试
D. 性能测试
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梅尼埃病发作期,病人除有眩晕、耳鸣、耳闷胀感等症状外,常伴有短暂性意识障碍。
A. 对
B. 错
Questions 11 to 18 are based on the conversation you have just heard.
A. Buy some new equipment.
B. Finish his work quickly.
C. Leave the equipment for the woman.
D. Watch what the woman is doing.
I/O系统主要有三种方式来与主机交换数据,其中主要用软件方法来实现,CPU的效率低的是 (1) ;要有硬件和软件两部分来实现,它利用专门的电路向CPU中的控制器发出 I/O服务请求,控制器则 (2) 转入执行相应的服务程序的是 (3) ;主要由硬件来实现,此时高速外设和内存之间进行数据交换 (4) 的是 (5) 。供选择的答案 4()
A. 通过CPU的控制,利用系统总线
B. 不通过CPU的控制,利用系统总线
C. 通过CPU的控制,不利用系统总线
D. 不通过CPU的控制,不利用系统总线
This company produces a large range of domestic and office furniture, and we are interested in using a number of products from your current range in the manufacture of our goods. As we are about to expand, our export operation, it is essential that our suppliers be both competitive in terms of price, and extremely reliable.