根据施工合同，甲建设单位应于2009年9月30日支付乙建筑公司工程款。2010年6月

Had it been possible, I would have gone to attend Monica in the hospital, but I  fully occupied last month.

A．was

B．am

C． had been

D．have been

为保证工?的耐久性，港口与航道工程结构混凝土所用水泥的强度等级不得低于（）。

A．32.5级 

B．42.5级 

C．52.5级 

D．42.5R级

病历摘要：患者女性，59岁，农民，因在吃早餐时突发剧烈头痛伴呕吐2+小时于21时急诊就诊，双颞侧头痛明显，持续性，呕吐10+次，既往曾发现血压偏高，查体：T37.3℃，P92次/分，R20次/分，Bp188/85mmHg，神志嗜睡，对答基本切题，双侧瞳孔2.5mm，光反射存在，双侧鼻唇沟对称，颈抵抗，四肢肌张力正常，肌力Ⅴ级，双侧Babinski征（－）。

该患者选择开颅动脉瘤夹闭手术治疗，为了减少手术中动脉瘤破裂出血机会，可以使用方法有？（）

A.控制性平均动脉压100mmHg

B.控制性平均动脉压70mmHg

C.分离瘤颈时，适当降低血压

D.提前使用止血药

E.静滴甘露醇

F.使用临时动脉瘤夹夹闭载瘤动脉

G.使用吸引器吸住动脉瘤

有关非去极化肌松药的作用机制的叙述，错误的是（）。

A.竞争受体上ɑ蛋白亚基的乙酰胆碱结合部位

B.与受体结合是可逆的动态的，可反复结合

C.竞争受体有明显的剂量依赖性

D.与受体结合后改变受体结构，离子通道开放

E.肌松药的作用消失有赖于其进入循环后被消除

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.