2013-12-06 15:22:44 来源: 互联网 责编:楷维留学指南
SAT真题类型:Writing > Identifying Sentence Errors 句子改错
The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence contains no error, select choice E.

(A)
(B)
(C)
(D)
(E)
2013年11月26日SAT考试官方每日一题答案:C
解析:The error in this sentence occurs at (C), where there is a flaw in parallelism. The pronoun “they” should be removed so that the sentence contains three parallel verbs (“became,” “built,” and “developed”).
SAT真题类型:Mathematics > Standard Multiple Choice 数学选择
Read the following SAT test question and then click on a button to select your answer.

In the figure above,
is the center of the circle and
is equilateral. If the sides of
are of length
, what is the length of
?
(A)![]()
(B)![]()
(C)![]()
(D)![]()
(E)![]()
解析:Choice (C) is correct. Since
is equilateral, each of its angles has measure
. It follows that
has measure
. Since
and
are radii of the same circle, they are of equal length, and so
is isosceles. Hence
and
each have measure
. Thus
has measure
, and so
is a
right triangle. Since
, the side opposite the
angle in
, is of length
, it follows that
, the side opposite the
angle, is of length
.
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