要()计算人力、物力,要在时间和空间上组织得科学合理,发挥最大效率。
A.认真
B.更好
C.妥善
D.周密
参考答案:D
3,15,7,12,11,9,15,( )
A.6
B.8
C.18
D.19
Questions 51-55 are based on the following passage.
To Err is Human
The title of the writing "To Err is Human" implies that ______.
A. making mistakes is confined only to human beingsB. every human being cannot avoid making mistakesC. all human beings are always making mistakesD. every human being is born to make bad mistakes