Much ________ he has a good taste for China’s football matches, he can’t avoid being influenced by the side effects of the football gambling.

A．that he claims

B．does he claim

C．is it that he claims

D．as he claims

心脏与大血管后前位适于观察（）。

A.左心房

B.左心室

C.右心房

D.室间隔

E.右心耳