从燃烧产物对环境影响的角度考虑,下列燃料中最理想的是 A.氢气B

从燃烧产物对环境影响的角度考虑,下列燃料中最理想的是

A.氢气

B.汽油

C.酒精

D.天然气

答案

A

相关题目

如图所示,在倾角θ=30°、足够长的斜面上分别固定着两个物
如图所示,在倾角θ=30°、足够长的斜面上分别固定着两个物体A.B,相距L=0.2m,它们的质量mA=mB=1kg,与斜面间的动摩擦因数分别为和.在t=0时刻同时撤
—When will the 2010 World Expo(世博会) come to a close? —It’ll close a
—When will the 2010 World Expo(世博会) come to a close? —It’ll close at the end of ________. A.September          B.October       C.November        D.December
-Hi, Betty. Your skirt looks beautiful.-_________. A. Really?  B. Oh, no. 
-Hi, Betty. Your skirt looks beautiful.-_________. A. Really?  B. Oh, no.   C. Thanks a lot.
如图是某些同学根据实验数据画出的图像,下列说法中正确的
如图是某些同学根据实验数据画出的图像,下列说法中正确的是( ) A.形成图甲的原因是平衡摩擦力时长木板倾角过大 B.形成图乙的原因是平衡摩擦力时
Soccer is not a violent game. But players can hit the ball with their head to p
Soccer is not a violent game. But players can hit the ball with their head to purposely change the direction of the ball. In the sport this move is known as a header. Unfortunately, they may sometim
下列药品中,不需要密闭保存的是 A.浓盐酸         B
下列药品中,不需要密闭保存的是 A.浓盐酸         B.浓硫酸            C.碳酸钠            D.烧碱
如图15-4所示,区域Ⅰ和区域Ⅱ的匀强磁场磁感应强度大小相
如图15-4所示,区域Ⅰ和区域Ⅱ的匀强磁场磁感应强度大小相等、方向相反.在区域Ⅱ的A处有一静止的原子核发生α衰变,生成的新核电荷量为q(大于α粒
用含32P的磷酸盐培养液培养动物细胞,一段时间后,细胞的
用含32P的磷酸盐培养液培养动物细胞,一段时间后,细胞的结构及其化合物中不具有放射性的是( ) A.脱氧核糖    B.核膜 C.ATP               

最新题目