【单选题】David studied hard before the examination, and it ______. He made an A. A. worked out
【单选题】我国现阶段公有制的主体地位,主要体现在( ) 1国有经济控制国民经济命脉 2公有资产在社会总资产中占优势 3国有经济在社会总资产中占优势 4对经济发展起主导作用
【简答题】物理性污染的特点,及与化学污染、生物污染相比有何不同?
【简答题】Rewrite the following sentences after the models, using “-ing participles”. She came up. She was holding a briefcase. 2. He rushed off. He forgot to take his raincoat. 3. I worked right through the se...
【单选题】The book might well have ______ had it been less expensive.
【简答题】A.worked through B.worked at C.looked through D.passed through
【简答题】简述物理性污染的特点,及与化学污染、生物污染相比的不同。