一本物理課本的質量約為············································...
練習題2.25W
問題詳情:
一本物理課本的質量約為··················································································· ( )
A.10克 B.100克 C.500克 D.2000克
【回答】
B
知識點:質量
題型:選擇題
-
光明在低頭的一瞬 ...
問題詳情: 光明在低頭的一瞬 遲子建 ...
-
命題“若aA,則b∈B”的否命題是( )(A)若aA,則bB (B)若a∈A,則bB(C)若b∈B,...
問題詳情:命題“若aA,則b∈B”的否命題是()(A)若aA,則bB (B)若a∈A,則bB(C)若b∈B,則aA (D)若bB,則a∈A【回答】B.命題“若p,則q”的否命題為“若﹁p,則﹁q”,故該命題的否命題為“若a∈A,則bB”.知識點:常用邏輯用語題型:選擇題...
-
設,若,則a=( )A.-1 B.0 C.2 D.3
問題詳情: 設,若,則a=( )A.-1 B.0 C.2 D.3【回答】D知識點:導數及其應用題型:選擇題...
-
我們每天都生活在陽光不斷變化的物質世界裡。下列變化一定屬於化學變化的是( )A.用幹*做製冷劑進行人工降雨B...
問題詳情:我們每天都生活在陽光不斷變化的物質世界裡。下列變化一定屬於化學變化的是( )A.用幹*做製冷劑進行人工降雨B.久置在空氣中的澄清石灰水錶面產生一層白膜C.伴隨有發光、放熱現象的變化D.*【回答】B知識點:各地會考題型:選擇題...
相關文章
- 光垂直入*到平面鏡上,反*角為········································...
- 物質的分子具有分子動能是由於·········································...
- 如圖,由相同的小正方體搭成的幾何體的主檢視是·································...
- 下列關於反應速率的說法錯誤的是·································( ...
- 下列說法正確的是···············································...
- 已知關於x的一元二次方程=0有一個解為0,則的值為·····························...
- 下列圖形中,不是軸對稱圖形的是········································...
- 在下列幾個例項中,運用的科學方法相同的是···································...
- 能體現物質特*的物理量是···········································...
- 下列整數中,與最接近的是···········································...