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【单选题】
在使用interface声明一个接口时，只可以使用( )修饰符修饰该接口。A.
private
B.
protected
C.
pnvate protected
D.
public
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【单选题】Passage 3 The United States is on the verge of losing its leading place in the world's technology. So says more than one study in recent years. One of the reasons for this decline is the parallel decl...
A.
a. the number of PH.D. degree holders is declining
B.
b. the number of scientists and engineers is decreasing
C.
c. the number of 22-year-ilds is declining
D.
d. scientists and engineers are not employed
【单选题】It can be inferred from the passage that______.
A.
the problem of prejudice and discrimination in the U.S. will be solved soon
B.
blacks are free people now, so they can enjoy equal rights as whites
C.
prejudice and discrimination are more severe in the South than in the North
D.
now there are more blacks living in the North than in the South
【简答题】The United States is on the verge of losing its leading place in the world’s technology. So says more than one study in recent years. One of the reasons for this decline is the parallel decline in the...
【简答题】连线题 （1）将我国领土四端点与其位置用线连接起来： A最北端 a帕米尔高原 B最南端 b黑龙江与乌苏里江主航道中心线的相交处 C最西端 c漠河以北的黑龙江主航道中心线 D最东端 d南沙群岛中的曾母暗沙 （2）将我国四大高原及对此的描述对应连接起来： A青藏高原 a地势平坦，一望无际 B内蒙古高原 b雪山连绵，冰川广布 C黄土高原 c地面崎岖，...
【单选题】Which of the following trading partners of the U.S. became its topmost “trade problem” at the beginning of the 21st century?
A.
United Kingdom
B.
Japan
C.
Germany
D.
Canada
E.
China
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