A.have cleaned
B.have been cleaned
C.had cleaned
D.had been cleaned
A.using; studying
B.use; to study
C.to use; to study
D.use; studying
开始考试点击查看答案A.am just helping out
B.could just help out
C.just help out
D.have just helped out
开始考试点击查看答案A.leaves; leave
B.leaves; am leaving
C.is leaving; am leaving
D.is leaving; leave
开始考试点击查看答案A.is
B.was
C.will be
D.has been
开始考试点击查看答案A.suggest
B.suggests
C.suggested
D.suggesting
开始考试点击查看答案A.has been raised
B.has risen
C.was raising
D.was rising
开始考试点击查看答案A.covers
B.writes
C.prints
D.reads
开始考试点击查看答案A.smoked
B.was smoking
C.has smoked
D.had smoked
开始考试点击查看答案A.have eaten
B.had eaten
C.were eating
D.ate
开始考试点击查看答案A.work
B.have worked
C.are working
D.will work
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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