题干
The confidence of the Chinese film makers _______by Avatar, the release of______ has not only set a good example for the Chinese film industry but also embarrassed our directors, who lack professional ethics.
A：has blown; which
B：have blown; that
C：has been blown; which
D：have been blown; that
答案(点此获取答案解析）
C
d处放一电荷q，则( )