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来源	题目内容
Ready4	<p>If arc PQR above is a semicircle, what is the length of diameter $PR$ ?p> <p>(1) $a = 4$ p> <p>(2) $b = 1$ p>
Ready4	<p>What is the value of $s^2-t^2$ ?p> <p>(1) $(s+t)(s-t)=3$ p> <p>(2) $s-t=1$ p>
OG12	If m, p, and t are positive integers and m < p < t, is the product mpt an even integer?(1)t - p = p - m(2)t - m = 16
Ready4	<p class="ng-scope">According to the passage, which of the following characteristics of the moons could account for the differences between Ariel and Oberon in terms of the number of large craters?p>
Ready4	<p>[GMAT-Math-7127-q]p> <p>What is the circumference of the circle above with center $O$ ?p> <p>(1) The perimeter of $\Delta OXZ$ is $20+10\sqrt{2}$ .p> <p>(2) The length of arc $XYZ$ is $5\pi$ .p>
Ready4	<p>A line in the $xy$ -coordinate plane passes through the points $<font color='#FE8080'>P</font>(0,2)$ and $Q(8,-6)$ . Does this line pass through point $R$ ?p> <p>(1) The coordinates of point $R$ are $(4,-2)$ p> <p>(2) Point $R$ is equidistant from points $<font color='#FE8080'>P</font>$ and $Q$ p>
Ready4	<p>If $a^2-ab=a^2-b^2$ , and $a \neq b$ , what is $c$ ?p> <p>(1) $c=3a$ p> <p>(2) $b=c^3$ p>
Ready4	<p>The King Edward College team won 25% of its first 12 games and went on to win all of its remaining games. What was the ratio of games won to games lost by the team, if there were no ties?p> <p>(1) If the team had won 25% of all its games, it would have lost 30 more games than it actually didp> <p>(2) The team won 75% of all its gamesp>
Ready4	<p> $3x-y=9$ p> <p> $\|y\| \leq 9$ p> <p>For how many ordered pairs $(x,y)$ that are solutions of the system above are $x$ and $y$ both integers?p>
Ready4	<p>In each of two rows, a series of statues is ordered by height. On the bottom row, the shortest statue is 14.1 centimeters tall. On the top row, the tallest statue is 14.01 centimeters tall. What is the median height out of all the statues in both rows?p> <p> p> There are 14 statues in the lower row. There are 15 statues in the upper row. <p> p>
Ready4	<p>Tyra mows lawns at a constant rate. She can mow 3 lawns in 2 hours. Ming also mows lawns at a constant rate. How much less time would it take Tyra and Ming working together to mow 3 lawns?p> <p>(1) Both Tyra and Ming mow lawns at the same rate.p> <p>(2) It takes Tyra twice as long to mow a lawn as it takes Tyra and Ming working together to mow a lawn.p>
Ready4	<p> $A=\{2,3,x,y\}$ p> <p> $B=\{x,y,5,6,7\}$ p><p>Two integers will be randomly selected, one integer from set $A$ and one integer from set $B$ . What is the probability that the sum of the two integers will equal 7?p> <p>(1) $x=3$ p> <p>(2) $y=4$ p>
Ready4	<p>Although virtually any animal or plant records older than about 10,000 years old are typically termed fossils, the type of tissue and the external substance determines whether a particular specimen is a trace fossil, derived fossil, subfossil, or something else.p>
Ready4	<p>What is the area of rectangle $Q$ ?p> <p>(1) Each diagonal of $Q$ has length $13$ .p> <p>(2) The perimeter of $Q$ is $34$ .p>
Ready4	<p>If $s$ is a positive integer, is $s$ a prime number?p> <p>(1) $\frac{21}{s}$ is an integerp> <p>(2) $\frac{47}{s}$ is an integerp>
Ready4	<p>If $q$ is a positive integer, what is the value of $q$ ?p> <p>(1) $q^3$ is a perfect squarep> <p>(2) $q^2=q$ p>
Ready4	<p>If $71$ students are fans of both football and basketball, how many students are fans of football but not fans of basketball?p> <p>(1) $85$ students are basketball fans.p> <p>(2) $89$ students are football fans.p>
Ready4	<p>If $k$ and $n$ are integers, is $k(n-1)$ odd?p> <p>(1) $k$ is odd.p> <p>(2) $n$ is odd.p>
Ready4	<p>If $l$ and $w$ represent the length and width, respectively, of a rectangle, then what is the perimeter?p> <p>(1) $l+w=15$ p> <p>(2) $2lw=72$ p>
Ready4	<p>A farmer planted the same number of pepper plants in several rows. The number of rows is 3 less than the number of pepper plants in each row. How many pepper plants are in each row?p> <p>(1) The farmer planted fewer than 10 rows of pepper plants.p> <p>(2) The farmer planted a total of 88 pepper plants.p>