某工程双代号网络计划如右图所示,图中已标出每项工作的最早开始时间和最迟开始时间,该计划表明()。
A. 工作1-6的自由时差为2
B. 工作2-3的自由时差为1
C. 工作2-5的自由时差为0
D. 工作4-7的自由时差为1
查看答案
【C3】
A. Consequently
B. In contrast
C. However
D. Besides
In the sentence "A person who has one can get what he wants", the word "one" refers to ______.
A. feature
B. marriage advertisement
C. permit to live abroad
D. Canada or the United States
【C2】
A. describe
B. talk about
C. designate
D. indicate
【C12】
A. Therefore
B. Yet
C. In contrast
D. So