问题：
[单选题] All theories,however,are tentative and are（ ）to criticism.
A、immuneB、resistantC、sensitiveD、subject问题：
[单选题] Although a natural alternative,such as honey,can be used to sweeten food if this is necessary,we can
A、currentB、substantialC、presentD、essential问题：
[单选题] Although there are disagreements over the definition of revolution,there is a standard view that rev
A、levelB、scaleC、degreeD、range问题：
[单选题] Americans are highly（ ）,and therefore may find it difficult to become deeply involved with others.
A、movableB、movingC、mobileD、motional问题：
[单选题] Any nation that interferes in the internal affairs of another nation should be universally（ ）.
A、blamedB、reproachedC、scoldedD、condemned问题：
[单选题] Any sufficiently advanced technology,noted Arthur C.Clarke,a British science-fiction writer,is indis
A、spotB、noticeC、pointD、note问题：
[单选题] Any sufficiently advanced technology,noted Arthur C.Clarke,a British science-fiction writer,is indis
A、intuitiveB、difficultC、abstractD、private问题：
[单选题] Any sufficiently advanced technology,noted Arthur C.Clarke,a British science-fiction writer,is indis
A、reducesB、increasesC、moderatesD、abolishes问题：
[单选题] Any sufficiently advanced technology,noted Arthur C.Clarke,a British science-fiction writer,is indis
A、retainB、replaceC、reformD、resume问题：
[单选题] As an industry,biotechnology stands to（ ）electronics in dollar volume and perhaps surpass it in soci
A、contendB、contestC、rivalD、strive问题：
