ѧӢѧ
ѧӢѻشϰδشϰĿԾԾȫ
СǿͬѧΪ˲ijҺܶȣʵ飺
1ȵƽƽ⣬ָƫֶҲ࣬ʱӦ________(ѡҡ)ƶƽĸ
2ƽƽСǿֽ
A.ƽձʣҺ
B.Һ嵹ձУƽձҺ
C.ձҺһֵͲⲿҺ
ͼʾϲȷ˳________ (Ӣ٢ڢۢѡһ)
ABC BAC BCA CAB
3ͼɵãҺܶΪ________ kg/m3
4жϣҺҺе______ (ĸ)
A. ˮ B. ˮ C. D. ˮ
Ŀ Դ2019˽°꼶ϲ¡̬仯ԪԾ ͣ
ijʵСһ¶ȼƣװòƿеIJܺϸƿݻϴĿ_____Ϊ˸Ͽ̶ȣڱѹ½¶ȼƷ_____УҺ洦Ϊ0棻ٽ¶ȼƷ_____УҺ洦Ϊ100档
Ŀ Դư꼶ȫᡶ5 ܶȡ֪ʶɲԾ ͣѡ
ԼΪ2105mg
A. һöͼ B. һ꼶α C. һѧ D. һľ
Ŀ Դ˽̰꼶ϵ¡Ԫ ͣѡ
ƽ澵˵вȷ
A. ƽ澵ԭǹķ
B. ƽ澵ɵƽ澵ϣǿԼʵ
C. ƽ澵ǹֱߴγɵ
D. ƽ澵ʱ岻ƽ澵гһ
ͼʾˮƽбһƽ澵һСȥҪʹƽ澵Сֱ䣬ļнǦΪ
A. 30 B. 45 C. 60 D. 90
Ŀ Դտư꼶²ᡶ6 ʵԡ֪ʶԾ ͣ
һƿ500ˣװˮ900ˣƿװijͣװͺ840ˣ͵ܶȣ
ͬʵͭ_________Ƚϴȵľƾˮ______ϴˮѾƾ ͭ
Ŀ Դտư꼶²ᡶ6 ʵԡ֪ʶԾ ͣѡ
Ĵ봨8.0ش缰ʱʵʩȴʩͶоƷСȷ
A. һƿ600mlȪˮԼ60N B. һޱԼ50kg
C. һԼ5N D. һѧijαԼ200g
Ŀ Դտư꼶²ᡶ10 ѹǿ븡֪ʶɲԾ ͣ
Ϊ21043ĽûˮУܵĸFĴС
ٶ - ϰб - б
ʡΥͲϢٱƽ̨ | кϢٱר | թƭٱר | ʷкϢٱר | Ȩٱר