海鸟中谁是潜水冠军？

In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order. The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages. The average age of the United States population will increase between 1987 and 2000.
Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above

A．Sinusitis will be more common than either arthritis or high blood pressure in 2000.

B．Arthritis will be the most common chronic medical condition in 2000.

C．The average age of people suffering from sinusitis will increase between 1987 and 2000.

D．Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.

E．(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 20O0.

水肿、大量蛋白尿常见于（）

A.肾源性水肿

B.营养不良性水肿

C.局部静脉血栓形成

D.局部淋巴回流受阻

E.心源性水肿

姚女士，62岁，因肺炎住院治疗，因长期输液需要，预留置静脉套管针。

对该患者的处理，下列不正确的是（）。

A.抬高患肢

B.减慢输液速度

C.更换注射部位

D.局部50%硫酸镁湿热敷

E.送导管尖端进行培养

下列关于公募基金的说法，不正确的是( )。

A．募集的对象通常是不固定的
B．最小金额要求较低，且投资者众多
C．运作必须严格遵循相关的法律和法规，并受监管机构的严格监管
D．一般投资于衍生金融工具等产品

联合剪冲机床由什么组成？