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【单选题】
离子交换树脂能是一种 [ ]A.
非电解质
B.
有机高分子电解质
C.
易溶于水的物质
D.
在溶液中能与异性离子交换的电解质
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【单选题】听力原文： Today, we discuss one way foreign students earn money while attending graduate school. They can work as teaching assistants. Teaching assistants are known as TA for short. They usually work abou...
A.
To give a lecture to all the students in a large class one or two times a week.
B.
To give tests and read any homework or reports students may be required to write.
C.
To meet individual students seeking help.
D.
To attend teaching meetings.
【单选题】The game is to illustrate
A.
a way of scamming.
B.
evil side of human nature.
C.
how economic scams work.
D.
inter-personal mistrust.
【简答题】用计算器计算下面各题。 (1)30+ 2153= (2)2008 - 1997= (3)6178×205= (4)49×700-700= (5)97×2814= (6)2052÷ (432÷12)= (7)417×(78+31)= (8)4000÷ (379-329)=
【单选题】______this way, one of _____the favorite drinks was invented.
A.
In; world’s
B.
By; world’s C On! World D, To; world
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