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【简答题】
在回收内存时可能出现下述四种情况:(1)释放区与插入点前一分区F1相邻接,此时应 1 :(2)释放区与插入点后一分区F2相邻接,此时应 2 :(3)释放区不与F1和F2相邻接,此时应 3 :(4)释放与F1相邻接,又与F2相邻接,此时应 4 .
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反馈参考答案：
举一反三
【简答题】In 1796, the scientist, Edward Jenner ___________ material
【多选题】下列自由形状功能的哪些有相切控制
A.
直纹面 (Ruled surface)
B.
过曲线网格 (Through curve mesh)
C.
过曲线 (Through curves)
D.
扫描
【简答题】过曲线网格特征（Through Curve Mesh）最多可以选择（）条主曲线线串和（）条交叉曲线线串。
【单选题】How did Dr. Edward Jenner solve the problem of smallpox?
A.
He kept on focusing on people who had smallpox.
B.
He changed his way of thinking by turning to people without smallpox.
C.
Dairymaids advised that he use cowpox to experiment.
D.
He happened to discover cowpox and he experimented with it on dairymaids.
【单选题】The famous Dr. Edward Jenner was busy trying to solve the problem of smallpox. After studying case after case, he still found no possible cure. He had reached an impasse in his thinking. At this point...
A.
deadened
B.
depression
C.
solution
D.
peak
【多选题】Jenner Edward (1749-1823)发明接种牛痘预防天花的研究证明了什么问题?
A.
主动免疫预防传染病的重要性
B.
现场试验可证实主动免疫效果
C.
疫苗的研制只能通过现场试验得到预防疾病的证据
D.
现场试验应基于大量可靠、准确的观察性研究
E.
现场试验不必考虑伦理学问题
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