Not until the early years of the19th century what heat is. A. man did know B. man——青夏教育精英家教网—

题目内容

23、 Not until the early years of the19th century _____ what heat is.
A. man did know B. man knew
C. didn’t man know D. did man know

试题答案

23、D

相关题目

Not until the early years of the19th century _____ what heat is.
A. man did know B. man knew
C. didn’t man know D. did man know

Not until the early years of the19th century _____ what heat is.

A. man did know　　　　　　　 B. man knew　

C. didn’t man know　　　　　　 D. did man know

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