* * 稀薄的泡沫状分泌物见于（）
A.外阴炎
B.滴虫性 * * 炎
C.外阴 * * 假丝酵母菌病
D.前庭大腺囊肿
E.慢性宫颈炎
参考答案：B
体内分子量最大的免疫球蛋白（）
A.IgG
B.IgM
C.IgA
D.IgD
E.IgE
I'm not a little tired today after giving the room a thorough cleaning and I have never had
______ today. [ ]
A. as tiring a day as
B. as a tiring day
C. tiring as a day as
D. day as a tiring as
