在“当世以布衣称作者，无虑数十家”中“无虑”的义为（）
A.没有
B.无忧
C.大略
D.不过
E.可能
参考答案：C
—He plays basketball so well! Who taught _______?
—He learnt it by _______.
A. him; him B. him; himself C. himself; him
加油量过多或过少是截割部温升过快的原因之一。（）
