下列哪项不是药物过敏引起肌体不同临床表现的原因？
A. 过敏源的性质不同
B. 进人体内途径不同
C. 作用的部位不同
D. 肌体的反应不同
According to Para. 2, the writer thinks that______.
A. life for a child is comparatively easy
B. a child is always loved whatever he does
C. if much is given to a child, he must do something in return
D. only children are interested in life
【B6】
A. Some
B. Many
C. Most
D. Few
What will be the best title of the passage？
A. Income and Work.
B. Motivation of Work.
C. Success in Work.
D. Value of Work.
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