A.been invited
B.been invited for
C.invited to
D.been invited to
A.had not been heard of
B.has not been heard of
C.had not heard of
D.has not heard of
开始考试点击查看答案A.has completed
B.have completed
C.have been completed
D.has been completed
开始考试点击查看答案A.had been discovered
B.have been discovered
C.are discovered
D.will be discovered
开始考试点击查看答案A.had changed
B.will change
C.was changed
D.has been changed
开始考试点击查看答案A.has
B.have
C.have been
D.has been
开始考试点击查看答案A.have produced
B.have been produced
C.are producing
D.are being produced
开始考试点击查看答案A.has tried; stop
B.have tried; keep
C.have been tried; prevent
D.has been tried; stop
开始考试点击查看答案A.has been caused
B.had been caused
C.will be caused
D.will have been caused
开始考试点击查看答案A.was published; had been
B.had been published; had been
C.has been published; has been
D.was published; has been
开始考试点击查看答案A.are not discussed
B.haven't been discussed
C.is not being discussed
D.hasn't been discussed
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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