【简答题】When he got off, he found he took a wrong train. He didn't find he toook a wrong train ______ he got off.
【单选题】He was so ______ on his book that he didn't find her come in.
【单选题】Tom went hunting for a week but still he didn't find a room______.
【单选题】某液体的容重为 γ ( N/m 3 ),在液体内部 B 点较 A 低 1m ,则 B 点压强比 A 点压强大( ) Pa 。
【单选题】He didn't find ___________ in the suitcase.
【单选题】All reference books ________, he didn't find the key to the question.
【判断题】社会主义精神文明是社会主义社会的重要特征。