根据句意填单词。

1._________ is the ninth month of the year.

2.There are twelve _________ in a year.

3. China's National Day (国庆节) is _________1st.

4._________ is your birthday? —April 3rd.

5.—How _________ are you? —I'm thirteen.

初产妇，28岁，因胎儿窘迫行剖宫产后1周，体温38.8℃，无腹痛，恶露正常无异味，哺乳时左乳触痛，无咳嗽。

该患者最可能的诊断是（）

A.上呼吸道感染

B.刀口感染

C.急性乳腺炎

D.产后出血

E.产褥感染