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【单选题】
对滴有酚酞试液的下列溶液,操作后颜色变深的是A.
明矾溶液加热
B.
CH 3 COONa 溶液加热
C.
氨水中加入少量 NH 4 Cl 固体
D.
小苏打溶液中加入少量 NaCl 固体
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A.
will be built
B.
was built
C.
has built
D.
will built
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A.
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B.
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C.
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A.
动人与经济社会的全面、协调、可持续发展
B.
提升人民的幸福指数
C.
满足人民群众日益增长的旅游休闲需求
D.
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【单选题】以下几组标识符中,正确的是()
A.
c_name、if、_name
B.
c*name、$name、mode
C.
Result1、somm1、while
D.
$ast、_mme、c$_fe
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