坯料的加热目的是提高其变形抗力，提高金属塑性，使之易于在模膛内流动成行，并具有一定的力学性能。
参考答案：错
— Have you moved into the new house?
— Not yet. The rooms___. [ ]
A. are being painting
B. are painting
C. are painted
D. are being painted
We should let more young parents and their children can enjoy scientific early education.
A. provide more young parents and their children to enjoy early education B. provide more young parents and their children to enjoy early education and scientific C. provide young parents and their children enjoy more scientific early education D. provide young parents and their children with more early education services
