近期，《××日报》拟开辟“进一步密切联系群众，着力提高党的凝聚力战斗力”专版。为此，

A 69-year-old client asks the nurse what the difference is between osteoarthritis (OA) and rheumatoid arthritis (RA). Which response is correct

A. OA is a noninflammatory joint disease. RA is characterized by inflamed, swollen joints.
B. OA and RA are very similar. OA affects the smaller joints, and RA affects the larger, weight-bearing joints.
C. OA affects joints on both sides of the body. RA is usually unilateral.
D. OA is more common in women. RA is more common in men.

IgA肾病表现为单纯性血尿或轻度蛋白尿（<18／天）的治疗为（）。

A.避免劳累

B.避免使用肾毒药物

C.应用糖皮质激素和细胞毒药物

D.扁桃体反复感染者应做手术摘除

E.预防感冒

某型号的水泥主要成分有Ca₂SiO_x、Ca₃SiO_y、Ca₃Al₂O_z，则x=     ，y=     ,z=     。

水泥具有水硬性，跟水掺和搅拌后很容易     ，水泥要     保存。

普通水泥以     和     为主要原料，煅烧后再加入适量     ，用以调节硬化速度。

目前确定乳腺肿块性质最可靠的方法是（ ）。

A．X线检查

B．B超

C．近红外线扫描

D．液晶热图像

E．活组织病理检查

摄入过量的铝容易引起（）。

A、消化功能紊乱

B、偏瘫

C、老年痴呆

D、抽搐