脊柱活动度最大的椎体是（） A.颈椎和腰椎 B.颈椎和胸椎 C.腰椎和骶椎 D.胸椎

－We can’t achieve our dream       we keep        hard.

－I agree with you.

A．until; work

B．if; working

C．unless; working

D．unless; work

Some great people said it was their primary school teachers and their lessons _____ _____

they were fond of influenced their whole lives.[ ]

A. which; that

B. that; which

C. which; which

D. that; that

关于“OTC”的说法不正确的是（　　）

A．病人可自行判断和使用的药物

B．病人不需要处方就能购买的药物

C．不需遵医嘱就能服用的药品

D．剂量较大，服用天数较长，需医师指导的药品

空调装置取暖工况可用控制送风露点（含湿量）的方法来控制舱室相对湿度，特别适合（）空调系统。

A．末端电再热式

B．双风管

C．分区再热式

D．B或C

乳癌的首发症状是（）

A． * * 凹陷

B．橘皮样改变

C．无痛性肿块

D． * * 弥漫性增生

E．两侧 * * 位置不对称