[青桐鸣]2025-2026学年高三9月质量检测考试数学答案
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[青桐鸣]2025-2026学年高三9月质量检测考试数学试题
[青桐鸣]2025-2026学年高三9月质量检测考试数学试题
I have a good friend. He is 1 monitor (班长) Jim. Now let me tell you about him.
2 does he look like He is tall. He wears a pair of black glasses. He is a kind and nice boy. And he is also 3 excellent monitor. Every student in our class 4 him. Jim studies well and he always gets high scores (分数) in all subjects. He even studies at the weekend. Jim’s favourite subject 5 maths. And he is good with numbers. In his free (空闲的) time, Jim often reads books in the library. Most of 6 books are about science. Jim can 7 the violin well and he joins the music club. He is also interested in 8 mountains.
When we need help, he is always ready to give a helping hand. And we work out many 9 together. That’s because Jim thinks it is his duty to help us. We are so lucky to have him 10 our monitor. And we should learn from him.
1．A．our B．us C．we D．I
2．A．When B．Who C．Where D．What
3．A．a B．an C．the D．/
4．A．likes B．like C．liked D．liking
1、[青桐鸣]2025-2026学年高三9月质量检测 数学答案
6、[青桐鸣]2025-2026学年高三9月质量检测考试数学答案
1、[青桐鸣]2025-2026学年高三9月质量检测考试数学答案
4、[青桐鸣]2025-2026学年高三9月质量检测考试数学试题
1、[青桐鸣]2025-2026学年高三9月质量检测考试数学答案
【解析】（1）半潜船有压载水舱是空心的，因而是通过增大排开水的体积来增大浮力的；
（2）海水深度为320m深度的压强p=ρ液gh=1.03×103kg/m3×10N/kg×320m=3.296×106Pa,
“海葵一号”未装原油时受到的浮力F浮=G排=m排g=3.7×107kg×10N/kg=3.7×108N；
（3）为保证半潜船甲板始终与海面相平，即排开液体的体积不变而液体的密度变大，故浮力增大，而浮力等于重力，故重力必须增大，因而要注水；
达到b海域时水舱中变化的水量为600t,ΔF浮=ΔG排=Δm排g=600×103kg×10N/kg=6×106N；
根据阿基米德原理知ΔF浮=Δρ液gV排=（1.03×103kg/m3-1.02×103kg/m3）×10N/kg×V=6×106N；
V=6×104m3，
[青桐鸣]2025-2026学年高三9月质量检测考试数学答案
