单项选择题

某双代号网络图有A、B、C、D、E五项工作，A、B、C完成后D才能开始，B、C完成后E开始。试选择正确的图形______。
A．
B．
C．
D．

A.B.shangxueba.cn/images/ct_jgzjzoxmm_jgzjzoxmchoosea_06531(20095).jpg'
C.D.shangxueba.cn/images/ct_jgzjzoxmm_jgzjzoxmchooseb_06531(20095).jpg'
E.F.shangxueba.cn/images/ct_jgzjzoxmm_jgzjzoxmchoosec_06531(20095).jpg'
G.H.shangxueba.cn/images/ct_jgzjzoxmm_jgzjzoxmchoosed_06531(20095).jpg'
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单项选择题
Who is Lisa?A．The caller.B．A technician.C．A customer.D．A coordinator.
A.The
B.
B．A
C.
C．A
D.
D．A
E.
单项选择题
听力原文： We will be stopping here for approximately an hour. Feel free to explore the many wonderful boutiques and patisseries. Mention that you are with Sunset Tours and many of the boutiques will give you a 10% discount. The croissants at the Wide Girth are especially fresh and are served with homemade honey butter. Enjoy yourselves but please make sure you are back in one hour. We would hate to leave anyone behind.Where is the talk probably being given?A．In front of a store.B．In front of a renowned building.C．On a tour bus.D．At a restaurant.
A.
Where
B.In
C.
B．In
D.
C．On
E.
D．At
F.
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