A-A+
______ drills that have no real topic have to
问题详情
______ drills that have no real topic have to remain as they are.
A．Manufacture
B．Manipulative
C．Manipulate
D．Manifest请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：句意：没有实际主题的操作性训练只得保持原样。manipulative意为“操作的；控制的”；manufacture意为“制造”manipulate意为“操纵”；manifest意为“显然的；明了的”。
