A.to have operated
B.to be operated
C.operated
D.operating
A.to invent
B.inventing
C.to have invented
D.having invented
开始考试点击查看答案A.taking
B.taken
C.to be taken
D.to take
开始考试点击查看答案A.to be looked
B.to look
C.to look after
D.to be looked after
开始考试点击查看答案A.to make
B.making
C.make
D.being made
开始考试点击查看答案A.to be sent for
B.sending for
C.sent for
D.to send for
开始考试点击查看答案A.to know
B.to have known
C.to be knowing
D.to be known
开始考试点击查看答案A.having been left
B.to leave
C.to be left
D.leaving
开始考试点击查看答案A.wait for his mother to come back
B.to wait his mother to come back
C.wait for his mother come back
D.to wait for his mother to come back
开始考试点击查看答案A.to learn
B.to be learned
C.learning
D.learned
开始考试点击查看答案A.to be sitting
B.sit on
C.to sit on
D.for sitting
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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