The Tribal Law and Order Act is to
A. serve as a link between tribal and federal systems.
B. give tribes more power to govern the country.
C. provide more resources for tribal communities.
D. stimulate Native American population growth.
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CRH380B型动车组司机室双针压力表的作用：显示()的风压。
A. 两个头车制动缸
B. 主风缸管和辅助风缸
C. 主风缸管和制动管
增溶剂的最适HLB值是
A. 13～18
B. 13～16
C. 8～16
D. 7～9
E. 3～8
W／O型乳化剂的HLB值
A. 3～8
B. 7～9
C. 8～16
D. 13～18
E. 0～20
润湿剂的HLB值
A. 3～8
B. 7～9
C. 8～16
D. 13～18
E. 0～20
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