. The manager or his assistant ______ planning to go.
A.were
B.are
C.was
D.Be
答案:C
以招标承销方式发行金融债券的,发行人应聘请主承销商;以协议承销方式发行金融债券的,发行人应与承销团成员签订承销主协议。( )
肺灌注显像的适应证有哪些?