Thanks to the heavy rain, the football match _____ until next week.

A．must put off

B．must have been put off

C．has to put off

D．has to be put off

一男青年，发病10天昏迷，呼气有肝臭，巩膜重度黄染，牙龈出血，肝浊音界明显缩小，总胆红素170mmol／L，ALT200U

可提示肝功能严重损害、肝功能衰竭的检验中最有价值而且方便的检查（）

A.肝脏B超

B.肝CT

C.凝血酶原时间

D.ALT＞2000U可提示肝衰竭

E.AST＞2000U可提示肝衰竭