血清病
A．暗红色果酱样脓血便B．排便前后有鲜血滴出或喷射出C．黏液脓性鲜血便D．粪便灰黑色，无光泽E．洗肉水样粪便伴腥臭味
参考答案：E
There is no doubt, in my opinion, ________matters is not the speed, but the quality of the products.[ ]
A. that
B. which
C. what that
D. that what
某固定资产原值2万元，净残值2000元，预计使用5年。若采用年数总和法计算折旧，则第二年应提折旧为（）元。
A．3800
B．4800
C．5600
D．6000
