【单选题】Based on the text, people have reached a consensus that
A.
poor children should be taught separately.
B.
there is something odd with Mr. Phillips' belief.
C.
black boys should be educated as a whole.
D.
there is something wrong with black boys.
【单选题】上图是执行粗车循环G73指令的刀具运动轨迹。C为整个循环起点,也是循环终点。指令中的d表示的是()
【单选题】发生( )的金属受到拉伸后能够恢复到原来的形状。
【判断题】常见的卡介苗和乙肝疫苗均属于一类(免费)疫苗
【判断题】College students should not have crazy ambitious career goals.
【单选题】发生( )的金属受到拉伸后能够恢复到原来的形状。
【判断题】G71和G73指令都是复合循环精加工指令