【判断题】添加植酸酶有助于提高饲料中磷的利用率,降低磷对环境的污染。( )
【简答题】普通照明用日光灯管(40瓦)__________
【单选题】为保护少年儿童的社会权利,l9联合国大会通过了( )。
【简答题】普通照明用日光灯管( 40 瓦 , 非热阴极)
【简答题】柴油机启动后,冷却水温上升很快的原因主要是主循环系统内()。
【单选题】A.He missed the bus. B. He got to the wrong place. C.He forgot the time. D. He was sick.
B.
He got to the wrong place.
【简答题】A. He missed the bus. B. He got to the wrong place. C. He forgot the time. D. He was sick.
【简答题】Translate the following into Chinese, paying particular attention underlined parts. 1. After the visit, he was deeply impressed by the people there. 2. I love having Fridays off . 3. I’m afraid Mr. Le...
【单选题】He was a good runner so he ________ catch the bus.