根据句意及首字母提示，补全单词，使句子完整、正确。  

1. You're in Class 3, and I am in Class 3, too. So we are c_____.   

2. Simon isn't thin. He is s____.  

3. My new f___ is from Shanghai. She is very pretty.   

4. What's in the cup? Let me h____ a look.   

5. These girls are his sisters. T____ are very slim.

某医院新生儿病房发生多例剥脱性皮炎患者，为追踪传染源，对从医务人员及病儿分离得到的金黄色葡萄球菌，应进一步做的试验是

A．血浆凝固酶
B．耐热核酸酶
C．溶血性
D．噬菌体分型
E．甘露醇发酵