—Mike, the office is in a mess; it's your turn to clean it up.

—________ I did it yesterday and the day before yesterday.

A．Don't count on me!

B．Back in a moment!

C．Don't fall for it!

D．Get off my back!

前列腺囊肿的超声表现是（）

A.前列腺内圆形、椭圆形无回声，边界光滑清晰，后方伴或不伴回声增强

B.前列腺内圆形、椭圆形增高回声，后方回声衰减

C.前列腺内形态不规则无回声，边界模糊不清

D.前列腺内圆形、椭圆形低回声，向膀胱内突起

E.前列腺内圆形、椭圆形无回声，向膀胱内突起