关于胸腔积液的检查，正确的是（）

A.胸腔积液蛋白含量<30g/L肯定为漏出液

B.胸腔积液LDH/血清LDH<0.6提示漏出液

C.脓胸时胸腔积液pH常升高

D.类风湿胸膜炎胸腔积液葡萄糖升高

E.恶性胸腔积液ADA（腺苷脱氨酶）常明显增加

Nowhere else, as his mother told us, __________ except the cabin in the backyard.

A．did he go

B．he did go

C．went he

D．he went