（）we have done too much for the chance to come here, we must work hard.
A. Since that
B. For
C. As
D. Because of
What's the old generation's comment on the young
A. The young are more knowledgeable than they are about the world around.
B. The young treat historical events as seriously as they do.
C. The young do not behave the way they did when they were young.
D. The young tend to ruin their minds to more serious matters.
The young are challenging traditional values EXCEPT in ______.
A. clothing fashion
B. traditional concepts
C. fixed working hours
D. marriage patterns
切口疝发病因素中最重要的是
A. 术后腹胀及剧烈咳嗽
B. 低蛋白血症
C. 安置引流物过久
D. 缝合技术欠妥
E. 切口感染
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