Birth defects affect about 5.6% babies born in China each year. Which of the following birth defects is the most common one?
A. Spina bifida
B. Congenital heart defects
Club foot
D. Lip/palate cleft
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Thenewspaper________intheaccident.
A. says
B. talks
C. calls
D. asks
I________at130kilometersperhourwhenthepolicestoppedme.
A. haddriven
B. havedriven
C. drive
D. wasdriving
铁路车辆的非驱动轴属于( )。
A. 传动轴
B. 转轴
C. 心轴
D. 以上都不是
齿轮减速器中的轴属于( )。
A. 传动轴
B. 转轴
C. 心轴
D. 其他轴