问题
单项选择题
某工程时标网络图如下，说法正确的是（）。
A．工作E的TF为2
B．工作F的FF为3
C．工作G的LS为8
D．工作H的EF为16
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
某工程时标网络图如下，说法正确的是（）。
A．工作E的TF为2
B．工作F的FF为3
C．工作G的LS为8
D．工作H的EF为16
参考答案：A
Life is not easy, so I’d like to say “When anything happens, believe in yourself.” When I was 14, I was___ nervous to talk to anyone. My classmates often____me. I was sad but could do nothing. Later,___ happened. It changed my life. It was an English speech contest. My mother asked me to take part in it. What a (n)___ ideal! It meant I had to___ in front of all the teachers and students of my school!“Come on, boy. Believe in yourself. You are sure to .” Then, Mother and I talked about many different topics（题目）. At last I the topic “Believe in yourself”. I tried my best to all the speech and practiced it over 100 times. my mother’s great love, I did well in the contest. I could not my ears when the news came that I had won the first place. I heard the cheers(喝彩声) the teachers and students. Those who once looked down on（瞧不起）me, now all said “Congratulations” to me. My mother hugged me and cried . Since then, everything has changed for me. When I do anything, I try to tell to be sure and I will find myself. This is true not only for a person for a country.
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