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标题: [讨论]我认为gigi第13套真题中两道题的答案有问题 [打印本页]

作者: xiulingwang 时间: 2008-3-5 22:04
标题: [讨论]我认为gigi第13套真题中两道题的答案有问题
第13套真题中两道题的答案有问题：

Q13:

Is the measure of one of the interior
angles of quadrilateral ABCD equal to 60 degrees?

(1) Two
of the interior angles of ABCD are right angles.

(2) The
degree measure of angle ABC is twice the degree measure of angle BCD.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH
statements TOGETHER are
sufficient, but NEITHER statement ALONE is sufficient.

D. EACH
statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

answer：C

但是我认为是：E

因为假如abc是直角的话，角bcd是45度，那么另一角是135度，则没有一角是60度；但是如果角abc和bcd都是非直角，那么他们分别是120度和60度，则有一角是60度。所以，我认为应该答案是E。

Q35:

Stations X and Y are connected by
two separate, straight, parallel rail lines that are 250 miles long. Train P
and train Q simultaneously left
Station X and Station Y, respectively, and each train traveled
to the other’s point of departure. The
two trains passed each other after traveling for 2 hours. When the two trains passed, which train was
nearer to its destination?

(1) At the time when the two
trains passed, train P had averaged a
speed of 70 miles per hour.

(2) Train
Q averaged a speed of 55 miles per
hour for the entire trip.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH
statements TOGETHER are
sufficient, but NEITHER statement ALONE is sufficient.

D. EACH
statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

答案：C
本人认为答案是A。

请大家多多讨论一下这两个题啊：）

作者: nicktao 时间: 2008-3-5 22:42

你做的答案没错　　你的资料上的答案错了

可为什么我的资料上这两题答案确实是E和A呢　　你的资料答案有问题啊　赶紧去查证

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