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【单选题】
混悬剂中使微粒Zeta电位降低的电解质是A.
润湿剂
B.
反絮凝剂
C.
絮凝剂
D.
助悬剂
E.
稳定剂
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反馈参考答案：
举一反三
【单选题】温病其人昏谵躁扰,妄为如狂,少腹硬满疼痛,大便色黑,舌质紫暗,其昏谵机理为:( )
A.
A ．热陷包络，扰乱神明
B.
B．瘀热扰心
C.
Ｃ．湿热酿痰，蒙蔽包络，扰及心神
D.
Ｄ．热结肠腑，胃热扰心
【简答题】当轨道区间有车占用时，轨道电路接通 灯电路。A. 红
【简答题】阅读理解。 The Blacks are American tourists. They visits now in Beijing. This is their first visit to China. They are going to stay in China for three months. They want to visit some big cities and village...
【单选题】In the early time of 20th century,______
A.
American blacks wrote the first blues song
B.
Handy composed the song 'Dallas Blues'
C.
the blues became popular in U.S.
D.
Instrumental blues appeared
【单选题】The first blacks were brought to North America as .
A.
servants
B.
slaves
C.
farmers
D.
teachers
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