有下列四组物质，每组中均有一种与其他物质所属类别不同，请在下面的横线上填写出这种

Which sentence is wrong?

A．We don’t think it necessary to give students tests every week.

B．We don’t have to worry about not having enough to eat now.

C．My father has left school for over twenty years.

D．He was heard singing a pop song when I passed his room.

患者，男性，70岁。因听力逐渐减退一年多，来院就诊，经过医生检查发现其骨传导功能正常，空气传导功能障碍。

进一步检查，下列哪一项可以不考虑（）

A.壶腹嵴

B.听骨链

C.内淋巴

D.鼓膜

E.外淋巴

患者表情呆滞，沉默寡言，记忆减退，失认失算，词不达意，腰膝酸软，颧红盗汗，耳鸣如蝉，舌红少苔，脉细弦数。证属（）

A．髓海不足 

B．脾肾两虚 

C．痰浊蒙窍 

D．瘀血内阻 

E．肝肾阴虚

釉下彩素坯绘制完成后，需要浸釉或喷釉才能烧成，通常在素坯表面施上一层透明釉，也可施深色釉。