【简答题】句型转换:根据要求完成句子。 1. We usually go to the library on foot. (同义句转换) We usually _______ _______ the library. 2. It's time to have lunch. (同义句转换) It's time _______ _______. 3. There is some milk in the glas...
【单选题】It is _____ to walk on the thin ice.
【多选题】思维是一种认识活动,是认识的理性阶段,具有抽象性、 ( )等特点。
【多选题】在测定水样中TC时,需要加入催化剂,通常使用的催化剂是( )
【简答题】It is _____ (er) to walk on the thin ice.
【单选题】___ is difficult to walk on the moon.
【单选题】在C语言的while循环语句中,用作条件的表达式是 。
【单选题】It is to walk on the thin ice.