假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误， 每句最多有两处错误，每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意： 1.没处错误及修改均仅限一词。

2. 只允许修改10处，多者（从第十一处起）不计分。

One day, did not feeling well, Mr, Smith went to the hospital to have him examined．When he was given the test paper, he greatly shocked．“Am I dying?” He immediately feels very sick． Filled with sadness, he went back home, taking a lot of pills and even wrote his will．“Maybe a doctor made a mistake”, Mr． Smith thought and went to the hospital to have other examination．To his great joy, the doctor really made a mistake but he didn’t have cancer in all! Again, the whole world seemed beautiful．Mr.Smith went out for his most favourite sport happily .    

滋养细胞肿瘤的随访指标中，除血尿hCG外，下列哪一项最有价值？（）

A.肺X线片

B.妇科检查

C.子宫双附件B超

D.肝脏B超

E.基础体温