| Street food is food that is prepared,
sold and eaten on city streets. Street food is an important part of the{{U}}
(1) {{/U}}of people in developing countries. An{{U}} (2)
{{/U}}2,500 million people worldwide eat street food. This kind of food
is{{U}} (3) {{/U}}in cost, tasty, nutritious and easy to serve, it is
designed for the lives of busy people in large cities. But buyers must be careful{{U}} (4) {{/U}}health risks. Street food sellers in developing countries often{{U}} (5) {{/U}}the storage, cooking and cooling equipment necessary to{{U}} (6) {{/U}}the formation of dangerous bacteria. {{U}} (7) {{/U}}some conditions, a single bacterium can grow into seventeen-million disease-carrying organisms in just eight hours. The lack of clean{{U}} (8) {{/U}}water and waste removal systems also{{U}} (9) {{/U}}the risk of infectio A. improved B. decreased C. developed D. increased [单选题]“外交人员证”证件号码以( )开头
A.A. B. IA C. ID D. IS [单项选择]船用离心式海水泵叶轮多采用（）。
A. 开式 B. 半开式 C. 闭式 D. A或B或C [单选题]高锰钢整铸辙叉心宽40mm断面处,辙叉心垂直磨耗(不含翼轨加高部分),50kg/m
及以下钢轨,在到发线上超过( )mm时为重伤标准。 A.6 B.10 C.12 D.8 [单项选择]单代号网络图的基本符号中“箭线”表示（）。
A. 工作名称 B. 一项工作 C. 工作持续时间 D. 紧邻工作之间的逻辑关系 [判断题]采用炉外精炼技术时，允许在初炼炉中使用一些质量较差或价格较便宜的原料。（）
[判断题]电流有大小,也有方向,但电压只有大小,没有方向。
A.正确 B.错误 [单项选择]工程中间交接一般按单项或系统工程进行，与生产交叉的技术改造项目，也可办理单项以下工程的中间交接。工程中间交接后，施工单位应继续对工程负责，直至（）
A. 施工全部结束 B. 试生产结束 C. 正式生产开始 D. 竣工验收 [单选题]下列关于损伤病人的转送方法,错误的是
A.四肢骨折的病人,搬运前妥善固定 B.疑有脊柱骨折,应三人以平托法将病人轻放于硬板床上 C.重型胸部损伤者,应卧于患侧 D.转运途中病人头部朝前 E.保证有效输液,预防休克 我来回答: 提交
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