Most cities and towns in China have n   1    markets every day. During the day, the streets are q   2   . At night, they become crowded（拥挤的） and lively（活跃的）. Usually people a    3  at three or four in the afternoon. By（到为止） 6:00, the streets are l   4    rivers of people.

Night markets are fun places to shop in. You can buy clothes, shoes and many o  5     things. If the price is too h     6 , you can bargain（还价） with sellers. You can also buy nice food. When you are h   7  , you can sit down for a meal. Smelly tofu(臭豆腐)is p   8 but it really smells bad.

The b   9   thing is everything at night markets is c   10   .

某分部工程双代号网络计划如下图所示，其作图错误不包括( )。

A．多个起点节点

B．多个终点节点

C．节点编号有误

D．有多余虚工作