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12/02/2014 Lately I've been thinking about everyday heroes. There really are many heroes among us who make (1)___________ an effort to find ways to make the world different. We may know some of them, but I assume that most of them we've never heard of. I read a weblog article a few days ago. the author made (2)_______remarks that the guy who finds a lost wallet and returns it to the owner is called a hero. Similarly, the guy who hits the go-ahead run to win the baseball game is called a hero. But are they?are those two guysreally heores? Can anyone make (3) ______ suggestions about who decides who is a hero anyway? And what makes a hero? 12/11/2014 The end of the semester is coming. Students are busy preparing to do (4)______exams. And I will have to do (5)______ assignments for the courses I have taken. However, the weblog is still hot, students' enthusiasm is not fading, and I will ponder on the topic of everday hero continuously1
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参考答案:
举一反三
【单选题】空调系统的噪声主要来自于( )。
A.
机械噪声
B.
空气动力噪声
C.
机械噪声和空气动力噪声
D.
风机和风管的振动噪声
【判断题】学前儿童神经细胞能量储备少,易因过度兴奋出现疲劳,但其新陈代谢旺盛,疲劳也易消除,故保教活动中无需担心幼儿会出现过度疲劳现象。
A.
正确
B.
错误
【判断题】( )具有极性共价键分子,一定是极性分子。
A.
正确
B.
错误
【单选题】利用 楼梯法 构造 5 阶幻方时,第2行第3列的格子中填入的数字为( )
A.
7
B.
8
C.
9
D.
10
【单选题】已知系统的 开环 传递函数为 ,则该系统的开环增益为 ( ) 。
A.
10
B.
2
C.
100
D.
不能确定
【判断题】从天然药物水提液中萃取有效成分能使用甲醇作为萃取溶剂
A.
正确
B.
错误
【单选题】切削三要素:切削速度、进给量和( )。
A.
主轴转速
B.
进给速度
C.
背吃刀量
D.
以上都不对
【单选题】子宫底降入骨盆是于产后
A.
3-5天
B.
5-7天
C.
7-10天
D.
10-14天
【单选题】如图所示为万用表上的常见插孔,该插孔用于测量( )。
A.
电阻值
B.
电容值
C.
三极管
D.
电感值
【单选题】血友病的发病机制是
A.
血小板数量异常
B.
凝血因子缺乏
C.
血小板功能异常
D.
血管壁异常
E.
珠蛋白生成障碍
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