患者，女性，35岁，因左足严重外伤后，发生气性坏疽，住院治疗。下列哪项处理不必要（）
题型：单项选择题
问题：
患者，女性，35岁，因左足严重外伤后，发生气性坏疽，住院治疗。下列哪项处理不必要（）
A.全身支持疗法
B.彻底清创
C.及时应用镇痛药
D.应用青霉素
E.避光安静
题型：单项选择题
句式转换,每空一词。
1.She has to see a doctor. (改为否定句）
She __________ ___________ to see a doctor.
2. Miss Li is popular in our class. Mr. Wang 
is more popular.(同义句转换)
Mr. Wang is __________ popular __________ Miss Li.
3.He has a toothache.（ 对划线部分提问 ）
__________ the matter __________ him?
4. Lin Hui often goes hiking on weekends. (用tomorrow 改写句子)
Lin Hui __________ __________ hiking tomorrow.
5. It usually takes me 3 hours to do my homework.. (同义句转换)
I usually __________ 3 hours __________ my homework.