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设有选修计算机基础的学生关系R,选修数据库的学生关系S。求选修了计算机基础而没有选修数据库的学生,则需进行( )运算。 A)并 B)差 C)交 D)或
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【单选题】The figure given below shows the market for computers in the U.S. The domestic price line inclusive of the tariff lies above the international price line. D d and S d are the domestic demand and suppl...
A.
a. 100,000; 70,000
B.
b. 70,000; 100,000
C.
c. 200,000; 190,000
D.
d. 90,000; 100,000
【单选题】The figure given below shows the market for shoes in the U.S. The domestic price line with tariff lies above the international price line. D d and S d are the domestic demand and supply curves of shoe...
A.
a. increases; c + d
B.
b. decreases; d
C.
c. decreases; (a + b + c +d)
D.
d. increases; (b + d)
【单选题】The U.S. lies in ________ North America, with Canada to the north, Mexico to the south, the Atlantic to its __________ and the Pacific to its ___________ .
A.
northern, east, west
B.
central, east, west
C.
southern, west, east
D.
western, west, east
【单选题】The figure given below shows the market for shoes in the U.S. The domestic price line with tariff lies above the international price line. D d and S d are the domestic demand and supply curves of shoe...
A.
a. a
B.
b. b
C.
c. c
D.
d. d
【单选题】某地国内生产总值2005年比2000年增长53.5%,2004年比2000年增长40.2%,则2005年比2004年增长
A.
无法确定
B.
9.5%
C.
13.3%
D.
33.08%
【判断题】国内生产总值GDP是按“国土原则”计算,国民总收入GNI是按“国民原则”计算。
A.
正确
B.
错误
【单选题】The figure given below shows the market for computers in the U.S. The domestic price line inclusive of the tariff lies above the international price line. D d and S d are the domestic demand and suppl...
A.
B.
C.
D.
D
【简答题】2000 年我国某地区国民生产总值5.76万亿元。“十五”的奋斗目标是,到2005年增加到9.5万亿元;远景目标是:2010年比2005年翻一番。试问: (1)“十五”期间将有多大的平均增长速度? (2)2001—2010年(以2000年为基期)平均每年发展速度多大才能实现远景目标? (3)2010年人口控制在0.4亿内,那时人均国民生产总值达到多少元?
【单选题】某地国内生产总值 2005年比2000年增长53.5%,2004年比2000年增长40.2%,则2005年比2004年增长
A.
9.5%
B.
13.3%
C.
33.08%
D.
无法确定
【单选题】The figure given below shows the market for shoes in the U.S. The domestic price line with tariff lies above the international price line. Dd and Sd are the domestic demand and supply curves of shoes ...
A.
a
B.
. (a + b)
C.
c
D.
(b + c + d)
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