Question of the Day. Can you answer today's question? 这就是SAT考试官网collegeboard的每日一题的训练。SAT考试不像托福、雅思或者GRE、GMAT考试，会有回忆机经，因此官网上的SAT真题就显得尤为重要。SAT考试官方每日一题可以让你熟悉SAT考试的出题方向及出题规律，有很大的参考价值，是每一位SAT考生都需要的备考资料。

　　楷维留学小编为大家整理SAT考试官方真题每日一题解析，此次整理2014年2月21日-2月22日。希望对大家备考SAT考试有所帮助。

2014年2月21日SAT真题

　　Mathematics > Standard Multiple Choice 数学选择

　　Read the following SAT test question and then click on a button to select your answer.

　　Which of the following statements must be true of the lengths of the segments on lineabove?

　　.

　　.

　　.

　　(A)only

　　(B)only

　　(C)only

　　(D)andonly

　　(E),, and

2014年2月21日SAT考试官方每日一题答案：B

解析：Consider each statement separately. For example, consider statement , . From the figure, you can see that segment is made up of the segments , , and . This tells you that cannot equal , since cannot equal zero. Statement is not true.

Consider statement , . Since is between and , it follows that . Since is between and , it follows that . Therefore, . Since both and equal , they are equal to each other. Statement is true.

Consider statement , . The left side of the equation, , is equivalent to . The right side of the equation, , is equivalent to . Since cannot equal zero, is not equal to . Statement is not true.

Statement is the only one that is true.

2014年2月22日SAT真题

　　Critical Reading > Sentence Completions 完成句子

　　Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.

　　Scientists are studying the birth and growth of thunderstorms to discover what causes the difference between showers that enable crops to ------- and ------- storms that cause floods and erosions.

　　(A) flourish . . violent

　　(B) wither . . damaging

　　(C) grow . . harmless

　　(D) parch . . severe

　　(E) multiply . . essential

2014年2月22日SAT考试官方每日一题答案：A

解析：A shower is gentle rain that waters crops, making them “flourish.” In contrast, the deluge of rain in a “violent” storm may damage crops and soil.