( ) The clothing industry includes______ .
A. jewelry and shoes
B. buttons, hooks, and zippers
C. clothes for men, women, children, and infants
D. all of the above
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( ) ______leads the world in the clothing industry.
A. Russia
B. China
C. America
D. France
( ) The author mainly tells us that______ .
A. some cities set the trend around the world
B. the clothing industry is very large at present
C. customs are the main reasons for different styles of dress
D. people dress differently all over the world for some reasons
下列不属于同素材性质判断的是( )。
A. 所有的人民警察都不是公务员
B. 所有的人民警察都是公务员
C. 有些人民警察是不穿警服的
D. 有些人民警察是公务员
“有的警察是铁路警察”是真的,那么下列是假命题的有( )。
A. 所有的警察都是铁路警察
B. 有的警察不是铁路警察
C. 所有的警察都不是铁路警察
D. 以上三个命题都是假命题