皮皮学,免费搜题
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【单选题】
由相同浓度的 HA 溶液与 NaA 溶液等体积混合组成的缓冲溶液,若 A - 的 K b = 1.0×10 -10 , 则此缓冲溶液的 pH 值为 ( )。
A.
4.0
B.
5.0
C.
7.0
D.
10.0
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举一反三
【单选题】下列不属于二类土的是( )。
A.
已夯实的松软土
B.
潮湿的粘性土
C.
泥炭
D.
含有建筑材料碎屑的堆积土
【单选题】What did the cellphone data show about 'routine'?
A.
One's routine affects his work pattern.
B.
Our routine affects our human nature.
C.
One's work pattern determines his routine.
D.
Our human nature determines our routine.
【简答题】Jay Jone's routine for a better rest: ______ at 5:00; then he will ______, ______, and ______; ______ at 5:30; ______ from 7 to 10; ______ at 10:15; ______ from 11 to 12; after luch, ______ with his d...
【单选题】听力原文:W: You looked rather worried. M: Yes , I was thinking about the Jone's case actually. It's a tough one. Why does the man look worried?
A.
Because Jone has a rough case.
B.
Because Jone's case is difficult to deal with.
C.
Because Jones has lost the case.
D.
Because Jone's is very tough.
【单选题】反刍的过程不包括( )。
A.
A. 逆呕
B.
B. 再咀嚼
C.
C. 再混合唾液
D.
D. 再消化
E.
E. 再吞咽
【单选题】潮湿的粘性土和黄土属于( ) 类 土。
A.
B.
C.
D.
【简答题】What did the cellphone data show about“routine”? A)One’S routine affects his work pattern. B)Our routine affects our human nature. C)One’S work pattern determines his routine. D)Our human nature deter...
【单选题】Most of Fei Yuqing's songs are light , ____ Jay Chou's, but  their cooperative song is very successful. [     ]
A.
within
B.
as
C.
like
D.
unlike
【单选题】听力原文:W: You looked rather worried. M: Yes, I was thinking about the Jone's case actually. It's a tough one. Why does the man look worried?
A.
Because Jone has a rough case.
B.
Because Jone's case is difficult to deal with.
C.
Because Jone has lost the case.
D.
Because Jone's is very tough.
【单选题】---When is Jay’s concert? --- It’s ______ three o’clock ______ the afternoon of July 18 th .
A.
at, in
B.
at, on
C.
on, in
D.
in, on
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