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【多选题】
可作为氯霉素滴眼剂pH调节剂的是A.
10%HCl
B.
硼砂
C.
酯
D.
硼酸
E.
硫柳汞
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知识点：
皮皮学刷刷变学霸
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【简答题】n. 重放;录音重放装置
【单选题】He looked around and caught a man _____ his hand into the pocket of a passenger.
A.
put
B.
to be putting
C.
to put
D.
putting
【单选题】Among the many ways in which people communicate through speech, public speaking has probably received more study and attracted more attention than any other. Politicians campaigning for public office,...
A.
most of them have been trained as public speakers
B.
such activities is prevalent in the society
C.
most of them have to do it when they study at college
D.
the passage does not mention the reason
【单选题】患者男性，40岁。因剑突下烧灼感与反酸3个月就诊，反流物呈酸性，胃灼热与反酸常发生在餐后，进食时胸骨后有梗塞感。该患者最可能的诊断是
A.
食管癌
B.
反流性食管炎
C.
消化道溃疡
D.
幽门梗阻
E.
食管贲门失弛缓症
【简答题】在日常生活里我们会遇到许多酸、碱、盐，例如：（写化学式） ①胃液里含有______；②汽水里含有______；③蓄电池里含有______；④用作建筑材料的碱______；⑤作为调味剂和防腐剂的盐为______．
【简答题】配制 0.1mol • L -1 硫酸铜溶液 200ml ,需要硫酸铜晶体( M=160g/mol )多少克?
【简答题】在日常生活里我们会遇到许多酸、碱、盐，例如：(写化学式) ①胃液里含有________； ②汽水里含有________； ③蓄电池里含有_________； ④用作建筑材料的碱________； ⑤作为调味剂和防腐剂的盐为_______。
【单选题】He looked around and caught a man ______ his hand into the pocket of a passenger.
A.
to be putting
B.
putting
C.
to put
D.
put
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