皮皮学，免费搜题
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搜题
【单选题】
防盲致盲的特定含义包括A.
对盲和视力损伤进行流行病学调查
B.
了解盲和视力损伤的主要原因
C.
研究致盲眼病的预防和治疗方法
D.
对盲和视力损伤的防治进行规划、组织和实施
E.
以上都是
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—Why does Jane feel so upset? —She failed the exam and she has no friends ____.
A.
talking with
B.
to talk
C.
to talk with
【单选题】如在急性吸入毒性实验当中,随着苯的浓度越来越高,各试验组的小鼠死亡率也相应增高,这说明存在质反应关系
A.
量反应关系
B.
质反应关系
C.
剂量-量反应关系
D.
剂量-质反应关系
【单选题】Why does she feel that way?
A.
She has too much to do.
B.
She failed a test.
C.
She is getting married.
D.
Someone woke her up.
【单选题】Why does she feel that way?
A.
She has too much to do.
B.
She failed a test.
C.
She is getting married.
D.
Someone woke her up.
【单选题】How does the woman feel when she hears about the news?
A.
She is surprised.
B.
She is happy.
C.
She is sad.
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