A:切去一定厚度,剩余质量相等,则切去的厚度hA′可能小于hB′
B:切去一定厚度,剩余质量相等,则切去的厚度hA′一定大于hB′
C:切去一定体积,剩余质量相等,则切去的体积VA′一定大于VB′
D:切去一定体积,剩余质量相等,则剩余的体积VA′一定大于VB′
This is a picture of Mr. Li's family. The man in the middle is Mr. Li. The woman is Mr. Li's wife. They have two sons. The child behind Mr.Li is Li Lei. He's thirteen. The other in front of Mrs. Li is Li Ming. He is eleven. Li Lei and Li Ming are in the same school, but not in the same grade. Li Lei is in Grade Two. Li Ming is in Grade One. They are good students.
I, drink, cake, draw, happy, on, they, present
My name is Alice. Today is my birthday. I am ____My mother and father make a ____for me. There are some oranges ____it. They are my favourite fruit. My friends come to my home with a lot of ____.I prepare (准备) many apples and bananas food for ____ .We talk and share delicious food and ____ Well, where is ____little brother? He sits and ____a picture for us.
下列关于生物进化总趋势的叙述,不合理的是( )
肺的下列哪项结构特点与肺进行气体交换的功能无关( )
选词填空
①阴天,暗得很,只能____(依稀、隐约、模糊)辨出坐在南首的是一个瘦瘦的、五十上下的中国人,穿一件牙黄的长衫,嘴里咬着一枝烟嘴……
②对于同情中国的内山老板,我总是带着敬爱和____(感谢、感激、感动)叫“先生”的,虽然并没有什么根据。
③买一本放在床头,交班回来,带着那种软绵绵的____(疲惫、疲倦、疲塌)躺着看这么几十页,该多好!
④什么?我很____(惊奇、惊异、惊诧)地望着他:黄里带白的脸,瘦得叫人担心;头上直竖着寸把长的头发……
⑤我____(尊敬、敬重、恭敬)地鞠了一躬,把书塞进帆布袋,背起便走出书店的门。