Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years ________ it has warmed in the 20,000 years since Ice Age.

A．so long as

B．as much as

C．as long as

D．as well as

关于血粪，叙述错误的是（）

A.柏油样黑粪常常提示出血部位位于食管、胃、十二指肠

B.紫红色粪提示小肠出血的可能性较大

C.粪表面血液附着或血液与粪相混提示结肠出血

D.果酱样粪伴阵发性哭闹是肠套叠的典型症状

E.大量鲜血粪提示胃或食管静脉破裂