语法填空。

     My name is Wang Kun. Since middle school, my sister and I 1_____ (dream) about 2_____ (take) a great

bike trip. When we graduated from college, we finally got the chance to do it. It 3_____ my sister 4_____ first

had the idea to cycle along 5_____ Mekong River from 6____ it begins to where it ends. The Dai live near the

Lancang River, the Chinese part of the river that 7_____ (call) the Mekong River in other countries. Wang Wei

soon got them interested in cycling too. She insisted that we 8_____ (find) the source of the river. She gave

me a 9_____ (determine) look. Once She has made up her mind, nothing can change it. Finally, I had to give

10_____.

系统响应时间和作业吞吐量是衡量计算机系统性能的重要指标。对于一个持续处理业务的系统而言，其（）

A.响应时间越短，作业吞吐量越小

B.响应时间越短，作业吞吐量越大

C.响应时间越长，作业吞吐量越大

D.响应时间不会影响作业吞吐量