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【简答题】
MSP430F169 单片机共有( )组 I/O 端口,每组 I/O 端口可独立编程且有( )个引脚。
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【判断题】在平面机构中若引入一个高副将引入1个约束,而引入一个低副将引入2个约束。
A.
正确
B.
错误
【单选题】The boy lets the animals do exercises so that they can ______.
A.
get fitter
B.
play a game together
C.
learn some English words
D.
stop throwing things all around
【简答题】Can animals be made to work for us? Some scientists think that one day animals may be taught to do a number of jobs. They say that in a film or on TV .We may see elephants, or monkeys, dogs, be...
【简答题】茶树按照叶片大小可以分为( )、( )和( )。
【简答题】A.Animals can think as men do. B.Animals can join words and make sentences. C.Animals can make noises when they are afraid and angry. D.Animals can think about the past and the future.
【单选题】According to the discussion, what can be concluded about animal language?
A.
Animals do have language.
B.
No conclusion has been made at present.
C.
Animals do not have language.
D.
Some animals have language and others do not.
【简答题】CAN ANIMALS BE MADE TO WORK FOR US? Can animals be made to work for us? Some scientists think that one day animals may be trained to do a number of jobs that are now done by human beings. The...
【简答题】茶树按照叶片大小可以分为()、()和()。
【简答题】阅读理解。 Many animals do strange things before an earthquake (地震). This news ma be important. Earthquakes can kill people and knock down houses. The animals may help to save lives. Some animals make a lo...
【单选题】在平面机构中若引入一个高副将引入(     )个约束
A.
1
B.
2
C.
3
D.
4
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