单项选择题
Why is the swine flu very dangerous to humans?A) Because it is fatal and has killed many people.B) Because it has spread to many countries.C) Because people know nothing about it.D) Because people know no immunity to it.
未知题型 通行政执法人员着装、举止和用语规范的主要内容是什么？（）
多项选择题 有下列哪些情形之一的，交通管理部门可以依法实施强制执行：（）
单项选择题 The part-time job really takes up most of my spare time.A) transfersB)occursC) occupiesD)spends
