皮皮学，免费搜题
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【单选题】
宜饭前服用的药物A.
胃蛋白酶合剂
B.
颠茄合剂
C.
维生素C
D.
氨茶碱
E.
溴化铵
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反馈参考答案：
举一反三
【判断题】The beauty of portable apps is that you can carry your software and your data on removable storage, such as a hard drive, and plug it into any computer.
A.
正确
B.
错误
【单选题】Which of the following statement about software is NOT true?
A.
Software is abstract.
B.
Software is portable.
C.
Software wears out.
D.
Software is logical entity.
【单选题】在气缸直径与最高气体爆炸压力一定的条件下，采用十字头式柴油机的最大优点是（）。
A.
减少气体力的合力
B.
使十字头销的直径不受气缸直径的限制
C.
增大气体力的合力
D.
使十字头销的直径受到气缸直径的限制
【单选题】生产工艺过程所产生的职业性有害因素按性质可分为:( )
A.
化学因素、物理因素、环境因素
B.
化学因素、物理因素、生物因素
C.
物理因素、生物因素、环境因素
D.
化学因素、生物因素、环境因素
【单选题】The beauty of portable apps is that you can carry your software and your data on removable storage, such as a ____, and plug it into any computer.
A.
USB hard drive
B.
USB flash drive
C.
USB gateway
D.
USB port
【判断题】True/False: The advantage of portable software is that you never have to install it on your computer.
A.
正确
B.
错误
【单选题】With portable software, ____.
A.
programs do not exist on the hard disk
B.
no configuration data is stored on the hard disk
C.
no entries need to be made in the Windows Registry
D.
all of the above
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