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(选做题)继哺乳动物乳腺生物反应器研发成功后，膀胱生物反应器的研究也取得一定进展。最近，科学家培育出一种转基因，其膀胱上皮细胞可以合成人的生长激素并分泌到尿液中。请回答： (1)将人的生长激素基因导入受体细胞，常用方法是__________。 (2)进行基因转移时，通常要将外源基因转入_________中，原因是____________。 (3)通常采用____________技术检测外源基因是否插入了的基因组。 (4)在研制膀胱生物反应器时，应使外源基因在的____________细胞中特异表达。 (5)为使外源基因在后代长期保持，可将转基因体细胞的_________转入_________细胞中构成重组细胞，使其发育成供体具有相同性状的个体。该技术称为_____________。
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A.
seems
B.
is seemed
C.
was seemed
D.
seemed
【多选题】要得到http://java.sun.com/doc1.html的URL类，该如何使用URL的构造函数?
A.
URLurl=newURL('file://java.sun.com/doc1.html')
B.
URLurl=newURL('http://java.sun.com/doc1.hml')
C.
URLurl1=newURL('http://java.sun.com')
D.
URLurl2=newURL(url1,'/doc1.html')
E.
URLurl1=newURL('http://java.sun.com')
F.
URLurl2=newURL('doc1.html',url1)
【多选题】要得到http://java.sun.com:8080/javadoc/doc1.html的URL类，该如何使用URL的构造函数?
A.
URLurl=newURL('file://java.sun.com:8080/javadoc/doc1.html')
B.
URLurl=newURL('http://java.sun.com:8080/javadoc/doc1.hml')
C.
URLurl1=newURL('http://java.sun.com:8080')
D.
URLurl2=newURL(url1,'/javadoc/doc1.html')
E.
URLurl1=newURL('http','java.sun.com',8080,'/javdoc/doc.html')
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A.
are;is
B.
are;are
C.
is;are
D.
is;is
【单选题】The students were all tired but _____ of them stopped _____. [ ]
A.
no, to rest
B.
none, to rest
C.
no, resting
D.
none, resting
【多选题】要得到http://java.sun.com:8080/doc1.html的URL类，该如何使用URL的构造函数?
A.
URLurl=newURL('file://java.sun.com:8080/doc1.html')
B.
URLurl=newURL('http://java.sun.com:8080/doc1.hml')
C.
URLurl1=newURL('http://java.sun.com:8080')
D.
URLurl2=newURL(url1,'/doc1.html')
E.
URLurl1=newURL('http','java.sun.com',8080,'/doc.html')
【单选题】Though Sundays are ______ as a day for rest, we must make good use of them. [ ]
A.
set out
B.
set down
C.
set aside
D.
set off
【简答题】About 60 percent of the students __________from the south; the rest of them __________from the north and foreign countries. A．are; is B．is; is C．is; are D．are; are
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