_____LiJun is only 10, _____ she has taken care of her sick father for three years.
A:Although; but
B:Although; /
C:Because; so
D:/; so
如图A~G是初中化学常见的物质,其中A、H为红色固体,E为黑色固体单质,B、C、D均为无色气体,F为石灰石的主要成分,G为蓝色溶液,M是无色液体,请根据如图回答问题:
(1)A的化学式为____ ;D的化学式为____ .
(2)反应②的化学方程式____ .
(3)反应③的化学方程式____ .
(4)反应④的化学方程式 ____ .
我国气候大陆性特征显著,具体表现为与同纬度其它地区相比( )
Bread and butter my favourite breakfast, but this morning I didn't have any choice but some noodles.