The marketing concept discussed in the passage is, in essence, _____.
A. the practice of turning goods into money
B. making goods available for purchase
C. the customer-centred approach
D. a form of persuasive salesmanship
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初孕妇,临产8h后出现协调性宫缩乏力,未破膜,宫口开大5cm,无明显头盆不称。最恰当的处理是
A. 静滴缩宫素
B. 剖宫产
C. 肌注镇静药
D. 等待自然分娩
E. 人工破膜后静滴缩宫素
The time right after birth is of great importance because it is a period when _____.
A. the baby can hear the mother's heartbeat
B. the baby produces a stimulus which the mother response to
C. the baby is separated from the mother
D. the mother's instinctive tendency to hold the baby on the left is brought out
HLA-Ⅱ类分子抗原肽结合区具有的特征是( )
A. 引起器官移植排斥反应
B. 能与抗原肽结合形成复合物,被TH细胞识别
C. 可接纳8~10个氨基酸残基
D. 决定HLA-Ⅱ类分子的多态性
E. 是同种异型抗原决定簇的存在部位
If too many of these rare animals are killed, their kind will _______.
A. die away
B. die down
C. die out
D. die from