A:线粒体是有氧呼吸的场所,没有线粒体的细胞只能进行无氧呼吸
B:线粒体、叶绿体、染色体、核糖体都含脱氧核苷酸
C:液泡内有糖类、无机盐、色素、蛋白质等物质,它对细胞内的环境起调节作用
D:含有色素的细胞器只有叶绿体
下列各项中,没有语病的一项是( )
经典诵读可以帮助我们提取丰富的历史信息。《三字经》“嬴秦氏,始兼并……迨至隋,一土宇……元灭金,绝宋世。太祖兴,国大明”中所反映的从长期分裂走向统一的朝代有( )
Will you please take a photo for us? __________.
“达菲”是制取抗“H7N7流感”的药物.对1岁以上的儿童推荐按照下列“体重﹣剂量表”服用“达菲”:
体重
小于等于15千克
15~23千克
23~40千克
大于40千克
每次用量
30mg
45mg
60mg
假如患病儿童的体重是35千克,在治疗过程中,需每天服用“达菲”胶囊2次 每颗胶囊含“达菲”75mg,一个疗程5天,那么该患儿一个疗程共需服用____多少粒颗胶囊?请写出简要的计算过程____ .
I'm Chinese ,but I am in England now. I can speak English. But I sometimes make mistakes with English. It was sunny yesterday. My class went to the park. I said,“Let's fly cats in the park. ”My classmates all laughed. I didn't know why. Then my teacher said,“Cats are animals. We can't fly them. But we can fly kites. ”“I know my mistake. I wanted to say kites,not cats. ”I said. Then we laughed again. That was funny.