皮皮学，免费搜题
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【单选题】
下列药物试验较易发生过敏性休克的是A.
内服试验
B.
斑贴试验
C.
试验
D.
划痕试验
E.
黏膜试验
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】The primary reason organizations engage in downsizing is to:
A.
stem current losses.
B.
promote future competitiveness.
C.
move operations oversea.
D.
thwart unionizing efforts within a given facility.
【单选题】Accidents are caused; they don't just happen. In hindsight, the primary reason may be easy to see: an overloaded tray, a shelf out of reach, a patch of ice on the road. Still, there are often one or m...
A.
a textbook
B.
a science fiction article
C.
a popular magazine
D.
a manufacturer's report
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