Floors aboard ship are().
A. frames to which the tank top and bottom shell are fastened on a double bottomed ship
B. transverse members of the ships frame which support the decks
C. longitudinal beams in the extreme bottom of a ship from which the ship's ribs start
D. longitudinal angle bars fastened to a surface for strength
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肾炎性肾病综合征是()
A. 尿蛋白(+),白细胞(+++),血压正常,血补体正常
B. 尿蛋白(+++),总蛋白降低,清蛋白降低,胆固醇增高,血压正常
C. 尿蛋白(+),红细胞(++),血压增高,血补体降低
D. 尿红细胞(+++),血压增高,尿素氮明显升高,少尿持续10天以上
E. 尿蛋白(+++),红细胞(++),血总蛋白降低,胆固醇增高,血尿素氮增高
两种文化的问题的提出者是谁?()
A. 乔治•萨顿
B. 斯诺
C. 福柯