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【单选题】
作物驯化和育种过程中经历的瓶颈会使群体遗传多样性降低。这种现象属于:A.
随机的遗传漂变
B.
选型交配
C.
遗传平衡
D.
基因突变
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举一反三
【单选题】Choose the correct stress of the following word.automatic
A.
'automatic
B.
auto'matic
C.
automa'tic
D.
automati ' c
【单选题】According to the speaker, what affect did some people think the increasing use of automation would have?
A.
It would make the workday longer.
B.
It would allow people to work on the weekend.
C.
It would make leisure activities expensive.
D.
It would create much more free time.
【简答题】With CAD, designers can develop work on screen, but spend more time on their drawings.
【判断题】With CAD, designers can develop work on screen, but spend more time on their drawings
A.
正确
B.
错误
【单选题】下面的程序编译后用以下命令运行:java ExceptionDemo hello,运行的情况是()。 public class ExceptionDemo{ public static void main(String args[1]){ for(int i=0;i<2;i++){ System.out.println(args[i]); } } }
A.
先输出hello,发生异常,异常类型是ArithmeticException
B.
发生异常,异常类型是IOException
C.
先输出hello,然后发生异常,异常类型是ArrayIndexOutOfBoundsException
D.
程序正常输出信息hello
【单选题】\tWith our new Quick Pay system, your monthly subscription fee will be debited automati-cally from the bank account of your（） .
A.
choice
B.
choose
C.
choices
D.
chose
【判断题】With CAD, designers can develop work on screen and save time on their drawings.
A.
正确
B.
错误
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