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【单选题】
下列物质中能组成共轭酸碱对的是A.
H3PO4和PO43-
B.
H2S和S2-
C.
NaOH和Na+
D.
H2CO3和HCO3-
E.
H2CO3和CO32-
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举一反三
【简答题】电容器在交流电路中,交流电频率越大,电路中电流越( )。
【单选题】听力原文：M: I know you got into podcasting pretty much at the beginning. How did you first hear of it? W: I was a reader of blogs, and I was aware that some bloggers were starting to attach audio files. T...
A.
She read a newspaper article about podcasting.
B.
She watched others' podcast.
C.
She borrowed some former bloggers' idea.
D.
She read some popular blogs.
【简答题】完形填空。 The bus stops at the next stop. 1 mother and her child 2 . On the bus and sit down. The conductor (售票员) comes 3 them for the tickets (票). The mother says, 'one ticket' 4 the Children's Park.'...
【单选题】He has__________ at Changi airport for a flight to Manchester.
A.
checked in
B.
leave
C.
checked out
D.
arrived
【单选题】In the south no one spoke to you at bus stops or in the markets, _____ here people smiled at you and said a few words.
A.
although
B.
so
C.
whereabouts
D.
whereas
【多选题】关于会计信息系统的叙述正确的是
A.
会计信息系统是一个组织处理会计业务的系统
B.
会计信息系统是一个封闭的系统，不与其他系统有联系
C.
会计信息系统为企业管理者、投资人、债权人等提供财务信息
D.
会计信息系统提供财务信息为企业的经营活动提供帮助
【单选题】Podcasting is changing the way information is being distributed, now you only need to subscribe to a podcast, then new episodes will be delivered to your computer.
A.
Podcasting is changing the way information is being distributed. Now you only need to subscribe to a podcast, and new episodes will be delivered to your computer.
B.
Podcasting is changing the way information is being distributed; now you only need to subscribe to a podcast; and new episodes will be delivered to your computer.
C.
Both A and B are correct.
【简答题】A．She wants to do and say as she likes. B．Podcasting is just a hobby for her. C．Nobody is charging in this field. D．The audience only want it for free.
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