A.don't concentrate
B.hadn't concentrated
C.haven't been concentrating
D.wasn't concentrating
A.were marking
B.were marked
C.were being marked
D.had been marked
开始考试点击查看答案A.even; come
B.even; have come
C.ever; come
D.ever; have come
开始考试点击查看答案A.will find
B.are found
C.have found
D.will have found
开始考试点击查看答案A.would give
B.had just given
C.have already given
D.was to giving
开始考试点击查看答案A.shouldn't
B.won't
C.mustn't
D.mayn't
开始考试点击查看答案A.have found
B.has been found
C.have been found
D.has found
开始考试点击查看答案A.has been fixed
B.was fixing
C.was fixed
D.Fixed
开始考试点击查看答案A.arrive
B.arrived
C.have arrived
D.had arrived
开始考试点击查看答案A.have never been
B.will never be
C.was never
D.had never been
开始考试点击查看答案A.is World Expo 2010
B.World Expo 2010 is
C.has World Expo 2010 been
D.World Expo 2010 has been
开始考试点击查看答案高中数学代数与函数一数系的扩充与复数的引入36
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入28
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入29
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入30
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入31
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入32
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入33
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入34
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入35
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入26
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