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【判断题】
免疫球蛋白由两条轻链和两条重链所组成,抗体与抗原的结合只涉及轻链,因为它有可变区域,重链的序列基本上都是恒定的,只起维持结构稳定的作用。A.
正确
B.
错误
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举一反三
【单选题】One of the differences between common stock and preferred stock lies in that
A.
the former is safer in getting dividends.
B.
common stockholders get more stable profits.
C.
the latter gets more fixed returns.
D.
preferred stockholders have more rights in voting.
【单选题】?Read the article below about common Stock and Preferred Stock and the questions. ?For each question (13-18), mark one letter (A, B, C or D) Common Stock and preferred Stock A public corporation issue...
A.
the voting rights the stockholders have.
B.
the stock shared by common people.
C.
the profits the shareholders receive.
D.
the ownership of a public corporation.
【单选题】Which of the following statements about preferred stock is wrong?
A.
Preferred stock is like debt in that there is a contractually specified fixed payment
B.
The Preferred dividends must be made before the holders of common stock can be paid anything
C.
Failure to pay preferred dividends will trigger a default
D.
The holders of preferred stock usually do not get to share the residual value of the firm’s assets with the holders of the common stock
【简答题】优先股(preferred stock)
【单选题】关于降压药物的联合应用，下列叙述哪项不正确
A.
药物协同作用可增强降压效果
B.
可减少单一药物剂量
C.
提高患者对降压药物的依从性
D.
有可能抵消某些药物的不良反应
E.
一般联合的药物不应超过两种
【单选题】关于Still病，下述叙述哪一项正确（）
A.
属于严重的全身性感染性疾病，不及时治疗短期内患者死亡有发热、特殊的皮疹、中性粒细胞减少、淋巴细胞增多四大特点
B.
需要与典型的伤寒病例相鉴别
C.
应当联合使用抗生素及肾上腺皮质激素
D.
是一种变态反应性疾病，在发热待查病因中需要考虑
E.
以上都不对
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