【简答题】我国对大洋锰结核的最早勘探是哪一年进行的?
【多选题】原子弹中的核装药分为两种,一种是( ),一种是( ).
【单选题】副脾的声像图特征()①脾门显示圆形、椭圆形结节②脾门结节1.0~2.0cm,包膜光滑,回声与脾脏相同③脾门结节血管分支与脾动、静脉相通④脾门多发结节,对相邻血管、器官有压迹
【简答题】Why did the cool and innovative Next products sell poorly? Its products did not sell well because they .
【简答题】听下面一段材料,回答第1至4题。 1. Why did Mr. Hill's chickens lay hardly any eggs? [ ] A. Because it was winter B. Because it was very noisy C. Because it was very hot 2. What could Mr. Hill do if he wanted to ...
【单选题】我国对大洋锰结核的最早勘探是哪一年进行的?()
【单选题】20世纪20年代初,在印度发现狼孩,7、8岁时被人发现已没有语言能力,不能独立行走,尽管专家提供了丰富的生活条件和学习条件,但直至6年后才开始直立行走;到17岁死去之前,仅学会几十个单词,整体发育相当于2岁儿童水平。该例子说明( )
D.
狼孩的遗传基因没有缺陷,但已错过接受教育的关键期
【简答题】听下面一段材料,回答第1-3题。 1. Where was the man born? A. Florida B. Chicago C. Indiana 2. Why did the woman and her mother move here? A. It's cool here. B. It's warm here. C. It's dry here. 3. Where does the co...