问题
单项选择题
在下图所示的双代号网络计划中，工作C的总时差为（）。
A．0
B．3
C．5
D．8
答案
参考答案：B
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在下图所示的双代号网络计划中，工作C的总时差为（）。
A．0
B．3
C．5
D．8
参考答案：B
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| My friend Elisa owns the largest collection of Barbie dolls I have ever seen. She has altogether 1. ________ more than 300 Barbie dolls. She treats them more as good friends than dolls. She is 2. ________ with them every day. For example, she curls their hair and keeps their clothes 3. ________ clean. In fact, Elisa's whole family takes good care of the collection. Her mother sews beautiful dresses 4. ________ the dolls and last year her father built a beautiful display glasshouse. It is big enough for the entire collection. Elisa is now 5 years old. More Barbie dolls will not stop her collection 5. ________ she is ten years old. Elisa says that some day when she is old 6. ________, she will sell her Barbie doll collection for a large sum of money which will be enough for her 7. _____ and even her marriage. It sounds wonderful, doesn't it? |