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【单选题】
关于热原耐热性的错误表述是A.
在60℃加热l小时,热原不受影响
B.
在100℃加热1小时,热原不会发生热解
C.
在180℃加热3~4小时,可使热原彻底破坏
D.
在250℃加热30~45分钟,可使热原彻底破坏
E.
在400℃加热1分钟,可使热原彻底破坏
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【简答题】Does James Wallman like driving in cities? – No, he says it can be _______.
【单选题】James says that Peter Jones has produced
A.
his reports late.
B.
only one report.
C.
very short reports.
【判断题】James says that making mistakes is an essential part of the learning experience.
A.
正确
B.
错误
【单选题】James says the European division solved a similar problem by
A.
closing some centres.
B.
advertising the centres.
C.
investing in the centres.
【单选题】'If we don't achieve some major step changes in crop yields by 2050,' says Dr. James Hartwell, 'there will be a major shortfall in available food to feed the world's population.' It's a serious proble...
A.
world population will be a serious problem in the future
B.
Hartwell and his team has found a total solution to the food shortage
C.
the Kalanchoe fedtschenkoi needs more water than other plants
D.
making the crops fit to the desert conditions is significant
【单选题】—James is really a good student. —Yes. Every teacher ______ highly of him. [ ]
A.
says
B.
talks
C.
speaks
D.
tells
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