We still couldn’t decide _________ with our difficulties in learning English.

A．how to do

B．how to deal

C．what to deal

D．what to solve

对腹腔内实质脏器破裂诊断意义最大的是

A．腹部CT
B．腹部B超
C．腹部X线平片
D．腹腔穿刺
E．以上都不是