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【多选题】
下列叙述正确的是A.
c(NH 4 + )相等的(NH 4 ) 2 SO 4 溶液、(NH 4 ) 2 Fe(SO 4 ) 2 溶液和NH 4 Cl溶液中，溶质浓度大小关系是： c[(NH 4 ) 2 Fe(SO 4 ) 2 ] < c[(NH 4 ) 2 SO 4 ] < c(NH 4 Cl)
B.
向AgCl悬浊液中滴入KI溶液，有AgI沉淀生成，说明AgCl的溶解度小于AgI的溶解度
C.
0.2 mol／L HCl溶液与等体积0.05 mol／L Ba(OH) 2 溶液混合后，溶液的pH＝1
D.
0.2 mol／L的NaHCO 3 溶液中c(H + )＋c(H 2 CO 3 )＝c(CO 3 2 － )＋c(OH － )
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举一反三
【单选题】The series employs a panel of _________ who critique the artists' performances and guide their teams of selected artists through the remainder of the season.
A.
two coaches
B.
three coaches
C.
four coaches
D.
five coaches
【单选题】The remainder of the ( ) (mostly nitrogen) can then be vented safely to the atmosphere.
A.
exhaust
B.
oxygen
C.
air
D.
odor
【简答题】请同学们观看电影《中国机长》,写一篇观后感。
【简答题】p_________(law) a conditional release from imprisonment that entitles the person to serve the remainder of the sentence outside the prison as long as the terms of release are complied with n.
【单选题】---- Who is _______________ the patient? ----- Maybe his sister.
A.
taking care
B.
looking for
C.
joining in
D.
attending on
【简答题】带头结点的双循环链表L为空表的条件是
【单选题】From his _______expression, we can guess that the problem maybe was quite _______.
A.
puzzled ; puzzling
B.
puzzling; puzzled
C.
puzzled; puzzled
D.
puzzling; puzzling
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