A、people were not interested in this idea
B、nobody sponsored this project
C、didn't have suitable glass and low-cost electronics for it
D、other reasons
A、people were not interested in this idea
B、nobody sponsored this project
C、didn't have suitable glass and low-cost electronics for it
D、other reasons
A、less than (小于)
B、greater than (大于)
C、less than or equal to (小于或等于)
D、one-half of (二分之一)
A、oil crisis
B、high inflation rates
C、large imports
D、unemployment problem
A、is
B、are
C、were
D、was
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