下列关于Windows NT的描述中，错误的是( )。A．Windows NT S

MS是环境因素作用而发生的自身免疫过程。

急性造血功能停滞常发生的疾病是（）

A.接触某些危险因素

B.感染发热

C.溶血性贫血

D.失血性贫血

E.缺铁性贫血

《职业病防治法》规定（）必须依法参加工伤社会保险

A.单位职工

B.用人单位

C.劳动者

食管癌

A．未见明显X线改变
B．食管狭窄与正常食管段过渡、边缘整齐、无钡影残缺征
C．食管中下段可见虫蚀样或蚯蚓样充盈缺损
D．管腔不规则狭窄、充盈缺损、管壁蠕动消失、黏膜紊乱
E．食管下端呈鸟嘴样改变，黏膜纹尚正常

Over a three-week period, the price of an ounce of gold increased by 25% in the first week, decreased by 20% in the following week, and increased by 5% in the third week. If the price of gold was G dollars per ounce at the beginning of the three weeks, what was the price, in terms of G, at the end of the three weeks ？（）

A. 0.95G

B.G

C. 1.05G

D. 1.1G

E. 1.15G