A.was preparing
B.is preparing
C.has been preparing
D.had been preparing
A.have travelled
B.had travelled
C.travelled
D.travel
开始考试点击查看答案A.to equip
B.to be equipped
C.will equip
D.will be equipped
开始考试点击查看答案A.had been built and rebuilt
B.has been built and rebuilt
C.have been built and rebuilt
D.are being built and rebuilt
开始考试点击查看答案A.was staying
B.stay
C.stayed
D.am staying
开始考试点击查看答案A.saves
B.saved
C.will save
D.will have saved
开始考试点击查看答案A.didn't post
B.hasn't posted
C.doesn't post
D.hadn't posted
开始考试点击查看答案A.are going up; become
B.have been going up; will become
C.have gone up; will become
D.have been gone up; become
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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