请完成下面填空: (1)硬水和软水可用 来区分。(填物质名称) (2)用氯化物______(填化学式)溶液可以一次性验证Ag、Cu、Al三种金
2.下列各句中,没有语病的一句是 A.在“中国好声音”的舞台上,每位选手的实力都不弱,要使四位导师都转身,关键在于选手能否选择适合自己唱
下列关于同源染色体的叙述,正确的是( ) A.减数分裂中配对的染色体 B.在人的肌细胞中没有X和Y这对同源染色体 C.在人的精原细胞中没有同
提出我国经济体制改革的目标是建立社会主义市场经济体制的会议是: A.中共十四大 B.十一届三中全会 C.中共十五大 D.中共十六大
一Look at that model ship. 一I know,but it looks like a real one.It’s just _______. A.small B.very small C.smaller D. smallest
The largest animal ever to live on earth is the blue whale. It weighs about 80 tons—more than 24 elephants. It is more than 30 meters long. A new baby whale weighs as much as a big elephant. C
III. 完型填空 (共20小题,每小题1.5分,满分30分) A very little boy was spending his Saturday morning playing in his sandbox. He had with him a plastic pail(桶) and a shiny, red pla
(丽水)古诗文名句默写。 ①举杯邀明月, (李白《月下独酌(其一)》) ② , 凭君传语报平