ʱ : 2019-2020学年八年级上学期科学期中测试试卷(1-2)A?- 百度文库ϿʼĶ
D . ƽ
12. 3֣ʫУǣ A . ճ꣬ȴ B . ҹ֪ C . һҹǧ滨 D . ˼·ƾɽһʢ
13. 3֣һڵɲµĽԲ建ˮУˮ㹻ԲӴ֮ǰȷӳɲʾ F Բ½ĸ߶ h ϵͼǣ
A .
B .
C .
5 ҳ 21 ҳ
D .
14. 3֣ͼʾʢˮձڵ A ϣձˮƯһǿıʱձеĿ¸ֱպϿ S ʹ·е A ˵Ĵżձˮ仯жȷǣ
A . Sˮ B . Sˮ½ C . Nˮ D . Nˮ½
15. 3֣ܽĸ۵㣬дǣ
A . ͼ˶ܵĦ
B . ͼܵĦڼͼ˿ܵĦ C . ͼ˶һܵĦ
D . ͼͬһˮƽֱʱܵĦС
16. 3֣صӰ죬ÿڿѵĸȥαıصͼеģ
6 ҳ 21 ҳ
A .
B .
C .
D .
⣨ 7 ⣬ 32 ֣ (7⣻32)
17. 4֣װͼһʾǺˮķ֮һſƼķչͳֻഺ÷ԭǣѹѾʵµĺˮңˮ˲伱ˮͼʾԴĴ͡
1ͼһУˮʱ¶ȼƵʾΪ100棬ʱˮϷѹΪ________ 2ˮBװú˲伱ԭ________
18. 4֣ţвˮԽ࣬ţܶԽССͨⶨܶȽ϶ţƷʵӣһɲҺܶȵġꡱһЩ˿ͼʾ
7 ҳ 21 ҳ
1ţ________(ѡ)
2ֱꡱABţУֹҺƽλñΪABͼʾȽϱABλã֪ABţ̵ܶΪA________B ֪ABţƷʵӡ
19. 4֣ 2018211գƽ»йŲ֮չͼΪҹ˶Ա˶ԱƶͶӳ A ˶Ͷ B 㣬֮ͶƳڱŻ BCD · D 㲢ײĿֻƫ벻ͬ뿪
1ֻײƫ벻ͬ˵Ч֮һ________
2Ͷڱػ˶Ϊ˶Ա֮ǰԱתǰʱͼҷתǰбĿٲͬ±ܵѹͬжͼбѹ p1 p2 Сϵ________
20. 6֣ͼʾһˮƽõĴʹϷһMMʹʹһ˶ʹͻȻֹͣʱMҪǰһ²ͣ¡
1MǰʱܵĦ________
2ʹԽֲڣڴʹϵĻоԽ̣Ϊ________
8 ҳ 21 ҳ