实用主义教育学的代表人物是美国教育家杜威，其代表作是《民主主义与教育》。 ( )
参考答案：对
.—You ____ have set aside more time to play with our kids.
—I wish I ______, but you know how busy I was.
A．should, would
B．could, did
C．might, should
D．should, had
当小绞车轴承出现（）情况时不准开车。
A、轴承温度高
B、轴承有异响
C、轴承缺油
D、轴承间隙小
