1，l1, l2 and l3 are three lines in space
The number of points at The number of points at
which lines l1 and l2 intersect which lines l2 and l3 intersect
1.三條任意直線，L1和L2的交點的個數與L2和L3的交點的個數沒關。
2. The number of 1/4-inch lengths in 1
a 4-inch length
2，是問4英尺中有多少個1/4英尺，應該是16個，所以是A
3. The maximun number of solid cubes 4
having edges of length 1/2 meter that
can be placed inside a cubical box
having inside edges of length 1 meter
3邊長為1的立方體里最多能放下幾個邊長為1/2的立方體，當然是8個咯
4. Cube C has volume 8 cubic centimeters
The area of one of the faces of cube C 3 square centimeters
4立方體體積是8，那一個面的面積當然是4咯
5. Ms.Smith got an 8 percent cost-of-living raise of $20 per week
Ms.Smiths new weekly salary $260
5 x0.08=20，那x+20=270260
6. On a certain number live, if -7 is a distance of 4 from n and 7 is a distance of 18
from n then n=
A.25 B.11 C.3 D.-3 E-11
6應該是-11
7. For all real numbers a and b. if ab=a, then a=
A. a2+ab B a2+ab+a C a2+a+b D a3+a2b E a3+a2b+a2
註：a2表示a平方，a3表示a立方
7新定義的運算ab=a, 那a=a=a=aa+aaa+aab
8.secretary typed 6 letters,each of which had either 1 or 2 pages.If the secretary typed 10 pages in all, how many of the letters had 2 pages?
A 1 B 2 C 3 D 4 E 5
答案是D，題目我都看不懂，是啥意思呢?
這是說秘書打六封信，沒一封信要1頁或者兩頁。如果秘書總共打了10頁，那麼有多少封信是兩頁?
解答：設有x封，則2x+=10,解得x=4.
9 how many of the five numbers above are each equal to the product of an integer and an odd integer that GREater than 1?
這五個數是：2 6 8 14 16
a.none b.one c.two d.there e.four
我覺得這道題除了2不可能,其它四個數都有可能.可答案是c,想問大家為什麼?
題目意思是這5個數哪些可以是2個1的數的積,一個是奇數，一個是整數，只有6和14的因數中有奇數，所以C。
10 這句話大家看該怎樣列式子呢?這是一道圖表題.
what was the approximate percent increase in personal income from 1965 to 1970?
是這樣/1965還是/1970這樣?
是這樣:/1965
The number of points at The number of points at
which lines l1 and l2 intersect which lines l2 and l3 intersect
1.三條任意直線，L1和L2的交點的個數與L2和L3的交點的個數沒關。
2. The number of 1/4-inch lengths in 1
a 4-inch length
2，是問4英尺中有多少個1/4英尺，應該是16個，所以是A
3. The maximun number of solid cubes 4
having edges of length 1/2 meter that
can be placed inside a cubical box
having inside edges of length 1 meter
3邊長為1的立方體里最多能放下幾個邊長為1/2的立方體，當然是8個咯
4. Cube C has volume 8 cubic centimeters
The area of one of the faces of cube C 3 square centimeters
4立方體體積是8，那一個面的面積當然是4咯
5. Ms.Smith got an 8 percent cost-of-living raise of $20 per week
Ms.Smiths new weekly salary $260
5 x0.08=20，那x+20=270260
6. On a certain number live, if -7 is a distance of 4 from n and 7 is a distance of 18
from n then n=
A.25 B.11 C.3 D.-3 E-11
6應該是-11
7. For all real numbers a and b. if ab=a, then a=
A. a2+ab B a2+ab+a C a2+a+b D a3+a2b E a3+a2b+a2
註：a2表示a平方，a3表示a立方
7新定義的運算ab=a, 那a=a=a=aa+aaa+aab
8.secretary typed 6 letters,each of which had either 1 or 2 pages.If the secretary typed 10 pages in all, how many of the letters had 2 pages?
A 1 B 2 C 3 D 4 E 5
答案是D，題目我都看不懂，是啥意思呢?
這是說秘書打六封信，沒一封信要1頁或者兩頁。如果秘書總共打了10頁，那麼有多少封信是兩頁?
解答：設有x封，則2x+=10,解得x=4.
9 how many of the five numbers above are each equal to the product of an integer and an odd integer that GREater than 1?
這五個數是：2 6 8 14 16
a.none b.one c.two d.there e.four
我覺得這道題除了2不可能,其它四個數都有可能.可答案是c,想問大家為什麼?
題目意思是這5個數哪些可以是2個1的數的積,一個是奇數，一個是整數，只有6和14的因數中有奇數，所以C。
10 這句話大家看該怎樣列式子呢?這是一道圖表題.
what was the approximate percent increase in personal income from 1965 to 1970?
是這樣/1965還是/1970這樣?
是這樣:/1965
收藏