A monument was set up at the centre of Tian’men Square ______ those who devoted their lives to our country. A. in praise of B. in place of C. in memory of D. in need of
She felt sorry that she had disturbed the ____ calmness of a man she respected. A. seeming B. final C. usual
— My mother doesn’t like going shopping in Hong Kong at all. — Well, shopping there isn’t liked by _________.A．anybodyB．nobodyC．everybodyD．somebody
两个完全相同的圆柱形容器中，分别盛有质量相等的煤油和水，如图所示，已知图中液体内Ｍ、Ｎ两点到容器底部的距离相等，煤油的密度小于水的密
将人体口腔上皮细胞转移至不同浓度（Ⅰ，Ⅱ，Ⅲ）的三种蔗糖溶液中，结果在Ⅰ中口腔上皮细胞形态不变，在Ⅱ中口腔上皮细胞皱缩，在Ⅲ中口腔上
下列各项组合中，能正确体现生命系统由简单到复杂层次的是（） ①核酸②神经元③呼吸道的上皮④病毒⑤胃 ⑥一只野兔 ⑦同一片森林中的所有
用一种试剂鉴别乙醇、乙酸、乙醛、甲酸四种无色溶液，这种试剂是下列的 ( ) A．银氨溶液 B．浓氨水C．FeCl3溶液 D．新制Cu(OH)2 浊液
