从本质上讲，物流信息系统是利用信息技术，通过（），将各种物流活动与某个一体化过程连接在一起的通道
A.物流
B.商流
C.资金流
D.信息流
参考答案：D
补全对话，每空一词。
A: Hello, Mike! Have you had an English 1.______?
B: Yes, we 2.______ it yesterday.
A: Did you do 3.______ in it?
B: Yes, I've got 95 marks.
A: Great. 4.______ do you 5.______ English well?
B: I learn by 6.______ conversations with friends. Often we 7.______ in groups.
A: How 8.______ listening and writing?
B: Always I watch CCTV English news, and I keep writing English diaries.
A: That sound 9.______. Can you tell me the easiest but best way?
B: It's hard to say. Just remember to use English all the 10.______. Don't be lazy.
操作系统中，可以并行工作的基本单位是 (12) ，它也是核心调度及资源分配的基本单位，它是由 (13) 组成的，它与程序的重要区别之一是 (14) 。
A．程序有状态，而它没有 B．它有状态，而程序没有 C．程序可占有资源，而它不可 D．它能占有资源，而程序不能
English all the 10.______. Don't be lazy.