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【单选题】
CEA是一种重要的非器官特异性肿瘤相关抗原，主要用于消化系统恶性肿瘤如结肠直肠癌、胰腺癌、胆管癌、肝癌、胃癌等的诊断。当肿瘤发生肝转移时，CEA升高尤为明显。恶性肿瘤手术切除时，连续测定CEA将有助于疗效观察。手术完全切除者，一般CEA恢复正常的时间是术后（）A.
1
B.
2
C.
4
D.
6
E.
8
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【单选题】According to the Para. 2, when it comes to gap years,______.
A.
the popularity of gap years results from an increasing number of charities
B.
Prince William was working hard during his gap year
C.
gap years arc not as fashionable as they were ten years ago
D.
a well-structured gap year is a guarantee of university success
【简答题】甲系盗窃惯犯，30周岁；乙系高一学生，15周岁，成天游手好闲。两人在一台球室相识，乙得知甲的盗窃行为后，希望甲以后作案时能够带上自己，甲欣然答应。甲乙计划对当地一别墅住宅区行窃，某日深夜两人潜人该小区，见其中～户人的房子暗着灯，进入一楼房间大肆翻找财物。因动静过大，惊起了别墅的女主人孙某，孙某走出卧室查看，甲乙二人拿出尖刀威胁孙某不要作声，孙某承诺自己不会声张，并表示只要他们不侵犯自己，屋里钱财任...
【简答题】什么是GAP，为什么要制定GAP?
【单选题】According to the Para. 2，when it comes to gap years, ______.
A.
the popularity of gap years results from an increasing number of charities
B.
Prince William was working hard during his gap year
C.
gap years are not as fashionable as they were ten years ago
D.
a well-structured gap year is a guarantee of university success
【简答题】减数分裂过程中，前期I的（）是同源染色体两两配对，出现联会现象的时期。
【单选题】There an enormous gap between the income of the rich and poor. Gap means _____
A.
difference
B.
the American clothes brand GAP
【多选题】关于GAP 说法，正确的有
A.
从事中药材生产的企业必须通过GAP 认证并取得GAP 证书
B.
GAP 适用于中药材（包过植物药和动物药）生产全过程
C.
实施GAP 有利于促进中药标准化、现代化
D.
GAP 是中药材生产质量管理规范
【简答题】如图1-4所示结构，画出杆件AB、CD和CE的受力图。
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