经行 * * 胀痛涉及的脏腑是()。
A.肝、脾、肾
B.肝、脾、肾
C.肝、胃、肾
D.肺、肝、肾
E.肺、肝、胃
参考答案:C
I Believe I Can Fly is a nice song by R. Kelly. This song tells us that believing in ______ is very important. [ ]
A. themselves
B. ourselves
C. itself
在某一化学反应,0.5L的密闭容器中,反应物B的物质的量在5s内从2.0mol变成0.5mol,在这5s内B的化学反应速率为( )
A.3mol/(L•s)
B.0.3mol/(L•s)
C.0.6mol/(L•s)
D.0.1mol/(L•s)