A.gained
B.was gaining
C.has gained
D.had gained
A.are taken
B.was taken
C.had taken
D.had been taken
开始考试点击查看答案A.don't know
B.won't think
C.think
D.didn't know
开始考试点击查看答案A.have polluted
B.is being polluted
C.has been polluted
D.have been polluted
开始考试点击查看答案A.has taught
B.will teach
C.has been teaching
D.will have been teaching
开始考试点击查看答案A.died, has died
B.has died, has been dead
C.has been dead, died
D.has died, has dead
开始考试点击查看答案A.is crossing
B.crosses
C.crossed
D.has crossed
开始考试点击查看答案A.is building
B.is built
C.well build
D.is being built
开始考试点击查看答案A.was looking through; found
B.am looking through; find
C.looked through; had found
D.had looked through; finding
开始考试点击查看答案A.meet
B.have been met
C.met
D.have been meeting
开始考试点击查看答案A.have
B.will have
C.has
D.shall has
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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