#### 题目列表

Science is a seemingly inexhaustible source of _____________, yet paradoxically scientists have been portrayed in recent decades as rather conservative--resisting innovation in their discipline sometimes to the point of dogmatism.
The overall message of this book on neuroscience is (i) _____________: the brain is quite (ii) _____________, and therefore damaged brains can be healed, aging brains can be rejuvenated, and even ordinarily healthy brains can be made faster and better.
Which of the following best describes the function of the highlighted sentence in the context of the passage as a whole?
The primary purpose of the passage is to
The author mentions "energy-rich honey dew primarily to
The author mentions the "cohort" primarily to
What is the reminder when $(345,606)^{2}$ is divided by 20?
What is the value of $\frac{51!-50!}{50!-49!}$?

x+$\frac{1}{x}$=2

#### Quantity A

$x^{2}$+$\frac{1}{x^{2}}$

#### Quantity B

$x^{3}$+$\frac{1}{x^{3}}$

n is a positive integer

#### Quantity A

The remainder when n(n+1)(n+2) is divided by 6

#### Quantity B

1

In 1970 approximately what percent of United States residents were older than 5 but younger than 65 years old?
Of the 10 selected years, which had the greatest total number of United States residents in the combined age groups of "5 years and younger" and "65 years and older"?
Of the following which best describes how the number of United States residents that were in the age-group"5 years and younger"changed from 1900 to 1940?
The primary purpose of the passage is to

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